From f750fa4fdf2059fa954ab1e750b026a0bafde689 Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Thu, 5 Jun 2025 12:44:25 +0200
Subject: [PATCH 01/25] Add a patch that enable to use libraries exposed via
 LIBRARY_PATH or relies on prefix provided ldconfig

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb  |  6 ++-
 .../Python/Python-3.11.5-custom-ctypes.patch  | 52 +++++++++++++++++++
 2 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 80e5335b710b..f59b52181ae6 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -10,7 +10,11 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58']
+patches = ['Python-3.11.5-custom-ctypes.patch']
+checksums = [
+    {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
+    {'Python-3.11.5-custom-ctypes.patch': 'fd56e81986051f22304dfc88953f5a5aad0c060f8e8649faa3633de644f5a61d'},
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
new file mode 100644
index 000000000000..db295f991998
--- /dev/null
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -0,0 +1,52 @@
+diff -ruN Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__init__.py
+--- Python-3.11.5.orig/Lib/ctypes/__init__.py	2025-06-03 17:24:09.817225787 +0200
++++ Python-3.11.5/Lib/ctypes/__init__.py	2025-06-03 17:26:02.851166381 +0200
+@@ -13,6 +13,8 @@
+ from _ctypes import ArgumentError
+ 
+ from struct import calcsize as _calcsize
++from ctypes import util
++import re
+ 
+ if __version__ != _ctypes_version:
+     raise Exception("Version number mismatch", __version__, _ctypes_version)
+@@ -349,6 +351,11 @@
+             flags |= _FUNCFLAG_USE_ERRNO
+         if use_last_error:
+             flags |= _FUNCFLAG_USE_LASTERROR
++        if _os.name == "posix":
++            if name and name.endswith(".so"):
++                s = re.sub(r'lib', '', name)
++                s = re.sub(r'\..*', '', s)
++                self._name=util._findLib_ld(s) 
+         if _sys.platform.startswith("aix"):
+             """When the name contains ".a(" and ends with ")",
+                e.g., "libFOO.a(libFOO.so)" - this is taken to be an
+diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
+--- Python-3.11.5.orig/Lib/ctypes/util.py	2025-06-03 17:24:09.816225753 +0200
++++ Python-3.11.5/Lib/ctypes/util.py	2025-06-03 17:28:52.212009753 +0200
+@@ -209,7 +209,7 @@
+             expr = os.fsencode(expr)
+ 
+             try:
+-                proc = subprocess.Popen(('/sbin/ldconfig', '-r'),
++                proc = subprocess.Popen((os.environ.get('EPREFIX') + '/sbin/ldconfig', '-r'),
+                                         stdout=subprocess.PIPE,
+                                         stderr=subprocess.DEVNULL)
+             except OSError:  # E.g. command not found
+@@ -301,7 +301,14 @@
+             # See issue #9998 for why this is needed
+             expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
+             cmd = ['ld', '-t']
+-            libpath = os.environ.get('LD_LIBRARY_PATH')
++            libpath = []
++            if os.getenv('EPREFIX'):
++                libpath.append(os.getenv('EPREFIX'))
++            if os.getenv('LD_LIBRARY_PATH'):
++                libpath.append(os.getenv('LD_LIBRARY_PATH'))
++            if os.getenv('LIBRARY_PATH'):
++                libpath.append(os.getenv('LIBRARY_PATH'))
++            libpath = ':'.join(libpath)
+             if libpath:
+                 for d in libpath.split(':'):
+                     cmd.extend(['-L', d])

From 98c9e64f96945f6c6d1c83c917d8db169b522b3e Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Fri, 6 Jun 2025 16:12:10 +0200
Subject: [PATCH 02/25] remove eprefix definitions

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb          |  2 +-
 .../p/Python/Python-3.11.5-custom-ctypes.patch        | 11 +----------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index f59b52181ae6..c468b1752b5f 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -13,7 +13,7 @@ sources = [SOURCE_TGZ]
 patches = ['Python-3.11.5-custom-ctypes.patch']
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
-    {'Python-3.11.5-custom-ctypes.patch': 'fd56e81986051f22304dfc88953f5a5aad0c060f8e8649faa3633de644f5a61d'},
+    {'Python-3.11.5-custom-ctypes.patch': '69744e7f694e349ce6aee0659ab771936f3f7daf1043275df2966f9f8b6cbb2e'},
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index db295f991998..5a73d201a118 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -25,15 +25,6 @@ diff -ruN Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__i
 diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
 --- Python-3.11.5.orig/Lib/ctypes/util.py	2025-06-03 17:24:09.816225753 +0200
 +++ Python-3.11.5/Lib/ctypes/util.py	2025-06-03 17:28:52.212009753 +0200
-@@ -209,7 +209,7 @@
-             expr = os.fsencode(expr)
- 
-             try:
--                proc = subprocess.Popen(('/sbin/ldconfig', '-r'),
-+                proc = subprocess.Popen((os.environ.get('EPREFIX') + '/sbin/ldconfig', '-r'),
-                                         stdout=subprocess.PIPE,
-                                         stderr=subprocess.DEVNULL)
-             except OSError:  # E.g. command not found
 @@ -301,7 +301,14 @@
              # See issue #9998 for why this is needed
              expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
@@ -41,7 +32,7 @@ diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
 -            libpath = os.environ.get('LD_LIBRARY_PATH')
 +            libpath = []
 +            if os.getenv('EPREFIX'):
-+                libpath.append(os.getenv('EPREFIX'))
++                libpath.append(os.getenv('EPREFIX' + '/usr/lib64'))
 +            if os.getenv('LD_LIBRARY_PATH'):
 +                libpath.append(os.getenv('LD_LIBRARY_PATH'))
 +            if os.getenv('LIBRARY_PATH'):

From 292f388dcca747238d5e98ac7a27baec8eae3bce Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Fri, 25 Jul 2025 15:30:06 +0200
Subject: [PATCH 03/25] Update custom patch adding additional function for
 libraries with full name

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb  |   2 +-
 .../Python/Python-3.11.5-custom-ctypes.patch  | 115 +++++++++++++++---
 2 files changed, 98 insertions(+), 19 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index c468b1752b5f..648dc05718a9 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -13,7 +13,7 @@ sources = [SOURCE_TGZ]
 patches = ['Python-3.11.5-custom-ctypes.patch']
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
-    {'Python-3.11.5-custom-ctypes.patch': '69744e7f694e349ce6aee0659ab771936f3f7daf1043275df2966f9f8b6cbb2e'},
+    {'Python-3.11.5-custom-ctypes.patch': 'f145f6daf11f430da45c1da77f1795e4793ee170178a3e97a8286c3c5468f997'},
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index 5a73d201a118..5c502d492398 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -1,43 +1,122 @@
 diff -ruN Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__init__.py
 --- Python-3.11.5.orig/Lib/ctypes/__init__.py	2025-06-03 17:24:09.817225787 +0200
 +++ Python-3.11.5/Lib/ctypes/__init__.py	2025-06-03 17:26:02.851166381 +0200
-@@ -13,6 +13,8 @@
- from _ctypes import ArgumentError
+@@ -14,6 +14,8 @@
  
  from struct import calcsize as _calcsize
-+from ctypes import util
-+import re
  
++from ctypes import util
++
  if __version__ != _ctypes_version:
      raise Exception("Version number mismatch", __version__, _ctypes_version)
-@@ -349,6 +351,11 @@
+ 
+@@ -349,6 +351,9 @@
              flags |= _FUNCFLAG_USE_ERRNO
          if use_last_error:
              flags |= _FUNCFLAG_USE_LASTERROR
 +        if _os.name == "posix":
-+            if name and name.endswith(".so"):
-+                s = re.sub(r'lib', '', name)
-+                s = re.sub(r'\..*', '', s)
-+                self._name=util._findLib_ld(s) 
++            if name:
++                self._name = util.find_library(name)
          if _sys.platform.startswith("aix"):
              """When the name contains ".a(" and ends with ")",
                 e.g., "libFOO.a(libFOO.so)" - this is taken to be an
 diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
 --- Python-3.11.5.orig/Lib/ctypes/util.py	2025-06-03 17:24:09.816225753 +0200
 +++ Python-3.11.5/Lib/ctypes/util.py	2025-06-03 17:28:52.212009753 +0200
-@@ -301,7 +301,14 @@
+@@ -149,6 +149,54 @@
+             return os.fsdecode(file)
+ 
+ 
++    def _findLib_gcc_fullname(name):
++        # Run GCC's linker with the -t (aka --trace) option and examine the
++        # library name it prints out. The GCC command will fail because we
++        # haven't supplied a proper program with main(), but that does not
++        # matter.
++        expr = r'^.*%s.*$' % re.escape(name)
++        c_compiler = shutil.which('gcc')
++        if not c_compiler:
++            c_compiler = shutil.which('cc')
++        if not c_compiler:
++            # No C compiler available, give up
++            return None
++
++        temp = tempfile.NamedTemporaryFile()
++        try:
++            args = [c_compiler, '-Wl,-t', '-o', temp.name, '-l:' + name]
++            # print(args)
++            env = dict(os.environ)
++            env['LC_ALL'] = 'C'
++            env['LANG'] = 'C'
++            try:
++                proc = subprocess.Popen(args,
++                                        stdout=subprocess.PIPE,
++                                        stderr=subprocess.STDOUT,
++                                        env=env)
++            except OSError:  # E.g. bad executable
++                return None
++            with proc:
++                trace = proc.stdout.read().decode()
++        finally:
++            try:
++                temp.close()
++            except FileNotFoundError:
++                # Raised if the file was already removed, which is the normal
++                # behaviour of GCC if linking fails
++                pass
++        res = re.findall(expr, trace, re.MULTILINE)
++        if not res:
++            return None
++
++        for file in res:
++            # Check if the given file is an elf file: gcc can report
++            # some files that are linker scripts and not actual
++            # shared objects. See bpo-41976 for more details
++            if not _is_elf(file):
++                continue
++            return file
++
+     if sys.platform == "sunos5":
+         # use /usr/ccs/bin/dump on solaris
+         def _get_soname(f):
+@@ -283,7 +331,7 @@
+             abi_type = mach_map.get(machine, 'libc6')
+ 
+             # XXX assuming GLIBC's ldconfig (with option -p)
+-            regex = r'\s+(lib%s\.[^\s]+)\s+\(%s'
++            regex = r'\s+(lib%s\.[^\s]+)\s+\(%s\)\s+=>\s+(\S+)'
+             regex = os.fsencode(regex % (re.escape(name), abi_type))
+             try:
+                 with subprocess.Popen(['/cvmfs/software.eessi.io/versions/2023.06/compat/linux/x86_64/sbin/ldconfig', '-p'],
+@@ -293,7 +341,7 @@
+                                       env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
+                     res = re.search(regex, p.stdout.read())
+                     if res:
+-                        return os.fsdecode(res.group(1))
++                        return os.fsdecode(res.group(2))
+             except OSError:
+                 pass
+ 
+@@ -301,7 +349,7 @@
              # See issue #9998 for why this is needed
              expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
              cmd = ['ld', '-t']
 -            libpath = os.environ.get('LD_LIBRARY_PATH')
-+            libpath = []
-+            if os.getenv('EPREFIX'):
-+                libpath.append(os.getenv('EPREFIX' + '/usr/lib64'))
-+            if os.getenv('LD_LIBRARY_PATH'):
-+                libpath.append(os.getenv('LD_LIBRARY_PATH'))
-+            if os.getenv('LIBRARY_PATH'):
-+                libpath.append(os.getenv('LIBRARY_PATH'))
-+            libpath = ':'.join(libpath)
++            libpath = os.environ.get('LIBRARY_PATH')
              if libpath:
                  for d in libpath.split(':'):
                      cmd.extend(['-L', d])
+@@ -326,8 +326,12 @@
+ 
+         def find_library(name):
+             # See issue #9998
+-            return _findSoname_ldconfig(name) or \
+-                   _get_soname(_findLib_gcc(name)) or _get_soname(_findLib_ld(name))
++            if os.path.exists(name):
++                return name
++            else:
++                return _findSoname_ldconfig(name) or \
++                   _findLib_gcc(name) or _findLib_ld(name) or \
++                   _findLib_gcc_fullname(name) 
+ 
+ ################################################################
+ # test code

From 115f7b0200c1fb51cf90e9fc1333dd928e8ffb09 Mon Sep 17 00:00:00 2001
From: casparvl casparvl
 <casparvl@x86-64-amd-zen2-node2.int.aws-rocky88-202310.eessi.io>
Date: Wed, 30 Jul 2025 09:35:06 +0000
Subject: [PATCH 04/25] Changed EasyConfig to use custom keywords from
 https://github.com/easybuilders/easybuild-easyblocks/pull/3860

---
 .../easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb  | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 648dc05718a9..b7c4c3c1a81e 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -10,12 +10,18 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-patches = ['Python-3.11.5-custom-ctypes.patch']
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
     {'Python-3.11.5-custom-ctypes.patch': 'f145f6daf11f430da45c1da77f1795e4793ee170178a3e97a8286c3c5468f997'},
 ]
 
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRRY_PATH to find libraries
+patches_filter_ld_library_path = ['Python-3.11.5-custom-ctypes.patch']
+checksums_filter_ld_library_path = [
+    {'Python-3.11.5-custom-ctypes.patch': 'f145f6daf11f430da45c1da77f1795e4793ee170178a3e97a8286c3c5468f997'},
+]
+
 builddependencies = [
     ('UnZip', '6.0'),
     ('pkgconf', '2.0.3'),

From d6088b10d983905a10714db76480a3fbb60b8c8f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Danilo=20Gonz=C3=A1lez?= <dagonzalezfo@gmail.com>
Date: Wed, 30 Jul 2025 12:05:40 +0200
Subject: [PATCH 05/25] prevent none as fullpath, use a robust regex for
 __findLib_gcc_fullname, remove sysroot info

---
 .../p/Python/Python-3.11.5-custom-ctypes.patch         | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index 5c502d492398..2093356568c1 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -10,13 +10,15 @@ diff -ruN Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__i
  if __version__ != _ctypes_version:
      raise Exception("Version number mismatch", __version__, _ctypes_version)
  
-@@ -349,6 +351,9 @@
+@@ -349,6 +351,11 @@
              flags |= _FUNCFLAG_USE_ERRNO
          if use_last_error:
              flags |= _FUNCFLAG_USE_LASTERROR
 +        if _os.name == "posix":
 +            if name:
-+                self._name = util.find_library(name)
++                fullpath = util.find_library(name)
++                if fullpath is not None:
++                    self._name = fullpath
          if _sys.platform.startswith("aix"):
              """When the name contains ".a(" and ends with ")",
                 e.g., "libFOO.a(libFOO.so)" - this is taken to be an
@@ -32,7 +34,7 @@ diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
 +        # library name it prints out. The GCC command will fail because we
 +        # haven't supplied a proper program with main(), but that does not
 +        # matter.
-+        expr = r'^.*%s.*$' % re.escape(name)
++        expr = os.fsencode(r'^[^\(\)\s]*%s[^\(\)\s]*' % re.escape(name))
 +        c_compiler = shutil.which('gcc')
 +        if not c_compiler:
 +            c_compiler = shutil.which('cc')
@@ -86,7 +88,7 @@ diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
 +            regex = r'\s+(lib%s\.[^\s]+)\s+\(%s\)\s+=>\s+(\S+)'
              regex = os.fsencode(regex % (re.escape(name), abi_type))
              try:
-                 with subprocess.Popen(['/cvmfs/software.eessi.io/versions/2023.06/compat/linux/x86_64/sbin/ldconfig', '-p'],
+                 with subprocess.Popen(['/sbin/ldconfig', '-p'],
 @@ -293,7 +341,7 @@
                                        env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
                      res = re.search(regex, p.stdout.read())

From b688107a3ba98a8c38e209a22db5e107a73a9335 Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Wed, 30 Jul 2025 18:12:34 +0200
Subject: [PATCH 06/25] update patch and recipe

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb  | 12 ++---
 .../Python/Python-3.11.5-custom-ctypes.patch  | 54 ++++++++++++-------
 2 files changed, 40 insertions(+), 26 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index b7c4c3c1a81e..958e8826de8b 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -10,18 +10,16 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
+patches_filter_ld_library_path = ['Python-3.11.5-custom-ctypes.patch']
+checksums_filter_ld_library_path = [
+    {'Python-3.11.5-custom-ctypes.patch': '74160b6b86c309222467157909d998cfae0a1f89e604fd3273e9b2db2c5a2929'}
+]
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
-    {'Python-3.11.5-custom-ctypes.patch': 'f145f6daf11f430da45c1da77f1795e4793ee170178a3e97a8286c3c5468f997'},
 ]
 
 # Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRRY_PATH to find libraries
-patches_filter_ld_library_path = ['Python-3.11.5-custom-ctypes.patch']
-checksums_filter_ld_library_path = [
-    {'Python-3.11.5-custom-ctypes.patch': 'f145f6daf11f430da45c1da77f1795e4793ee170178a3e97a8286c3c5468f997'},
-]
-
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
 builddependencies = [
     ('UnZip', '6.0'),
     ('pkgconf', '2.0.3'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index 2093356568c1..804071aac154 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -1,19 +1,24 @@
-diff -ruN Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__init__.py
---- Python-3.11.5.orig/Lib/ctypes/__init__.py	2025-06-03 17:24:09.817225787 +0200
-+++ Python-3.11.5/Lib/ctypes/__init__.py	2025-06-03 17:26:02.851166381 +0200
-@@ -14,6 +14,8 @@
+Override ctypes behavior to enable support for EB provided libraries. 
+This should be only applied if LD_LIBRARY_PATH is disabled. 
+Authors: Danilo Gonzalez (DoItNow group), Caspar van Leeuwen (SURF) and Alan O'cais (CECAM)
+diff -ruN Python-3.11.5/Lib/ctypes/__init__.py Python-3.11.5.patched/Lib/ctypes/__init__.py
+--- Python-3.11.5/Lib/ctypes/__init__.py	2023-08-24 14:09:18.000000000 +0200
++++ Python-3.11.5.patched/Lib/ctypes/__init__.py	2025-07-30 16:29:40.600331232 +0200
+@@ -14,6 +14,9 @@
  
  from struct import calcsize as _calcsize
  
++# Add util to use find_library capabilities
 +from ctypes import util
 +
  if __version__ != _ctypes_version:
      raise Exception("Version number mismatch", __version__, _ctypes_version)
  
-@@ -349,6 +351,11 @@
+@@ -349,6 +352,12 @@
              flags |= _FUNCFLAG_USE_ERRNO
          if use_last_error:
              flags |= _FUNCFLAG_USE_LASTERROR
++        # define CDLL instance name as fullpath
 +        if _os.name == "posix":
 +            if name:
 +                fullpath = util.find_library(name)
@@ -22,18 +27,18 @@ diff -ruN Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__i
          if _sys.platform.startswith("aix"):
              """When the name contains ".a(" and ends with ")",
                 e.g., "libFOO.a(libFOO.so)" - this is taken to be an
-diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
---- Python-3.11.5.orig/Lib/ctypes/util.py	2025-06-03 17:24:09.816225753 +0200
-+++ Python-3.11.5/Lib/ctypes/util.py	2025-06-03 17:28:52.212009753 +0200
-@@ -149,6 +149,54 @@
+diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util.py
+--- Python-3.11.5/Lib/ctypes/util.py	2023-08-24 14:09:18.000000000 +0200
++++ Python-3.11.5.patched/Lib/ctypes/util.py	2025-07-30 16:39:37.423162529 +0200
+@@ -148,6 +148,53 @@
+                 continue
              return os.fsdecode(file)
  
- 
 +    def _findLib_gcc_fullname(name):
 +        # Run GCC's linker with the -t (aka --trace) option and examine the
 +        # library name it prints out. The GCC command will fail because we
 +        # haven't supplied a proper program with main(), but that does not
-+        # matter.
++        # matter. This function will return the full path of the requested library
 +        expr = os.fsencode(r'^[^\(\)\s]*%s[^\(\)\s]*' % re.escape(name))
 +        c_compiler = shutil.which('gcc')
 +        if not c_compiler:
@@ -76,43 +81,54 @@ diff -ruN Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
 +            if not _is_elf(file):
 +                continue
 +            return file
-+
+ 
      if sys.platform == "sunos5":
          # use /usr/ccs/bin/dump on solaris
-         def _get_soname(f):
-@@ -283,7 +331,7 @@
+@@ -283,7 +330,8 @@
              abi_type = mach_map.get(machine, 'libc6')
  
              # XXX assuming GLIBC's ldconfig (with option -p)
 -            regex = r'\s+(lib%s\.[^\s]+)\s+\(%s'
++            # Regular expresion that captures complete line of ldconfig -p output that matches with library name. 
 +            regex = r'\s+(lib%s\.[^\s]+)\s+\(%s\)\s+=>\s+(\S+)'
              regex = os.fsencode(regex % (re.escape(name), abi_type))
              try:
                  with subprocess.Popen(['/sbin/ldconfig', '-p'],
-@@ -293,7 +341,7 @@
+@@ -293,7 +341,8 @@
                                        env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
                      res = re.search(regex, p.stdout.read())
                      if res:
 -                        return os.fsdecode(res.group(1))
++                        # return the regex second group, that is the library fullpath
 +                        return os.fsdecode(res.group(2))
              except OSError:
                  pass
  
-@@ -301,7 +349,7 @@
+@@ -301,10 +350,12 @@
              # See issue #9998 for why this is needed
              expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
              cmd = ['ld', '-t']
 -            libpath = os.environ.get('LD_LIBRARY_PATH')
++            # use LIBRARY_PATH instead of LD_LIBRARY_PATH to use EB provided shared libraries
 +            libpath = os.environ.get('LIBRARY_PATH')
              if libpath:
                  for d in libpath.split(':'):
-                     cmd.extend(['-L', d])
-@@ -326,8 +326,12 @@
+-                    cmd.extend(['-L', d])
++                    if stubs not in d.split('/'):
++                        cmd.extend(['-L', d])
+             cmd.extend(['-o', os.devnull, '-l%s' % name])
+             result = None
+             try:
+@@ -325,9 +375,15 @@
+             return result
  
          def find_library(name):
-             # See issue #9998
+-            # See issue #9998
 -            return _findSoname_ldconfig(name) or \
 -                   _get_soname(_findLib_gcc(name)) or _get_soname(_findLib_ld(name))
++            # Redefine find_library function, it will return the provided name if
++            # path exist, else it will use the set of functions to find the full library path. 
++            # it will return the one that has a match. 
 +            if os.path.exists(name):
 +                return name
 +            else:

From bd6e6164e893c7ca00d6714e0dea79467a8517c0 Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Thu, 31 Jul 2025 10:05:26 +0200
Subject: [PATCH 07/25] Remove regex encoding to ensure compatibility with
 decoded output, fix typo

---
 .../easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb      | 2 +-
 .../easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch    | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 958e8826de8b..0207bc730c1d 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -12,7 +12,7 @@ source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 patches_filter_ld_library_path = ['Python-3.11.5-custom-ctypes.patch']
 checksums_filter_ld_library_path = [
-    {'Python-3.11.5-custom-ctypes.patch': '74160b6b86c309222467157909d998cfae0a1f89e604fd3273e9b2db2c5a2929'}
+    {'Python-3.11.5-custom-ctypes.patch': '33b5e8612db313a54883c3c3539e84d996e31201ac9a340bec30c1e43cd3d4ac'}
 ]
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index 804071aac154..95aeffcf7da1 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -39,7 +39,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
 +        # library name it prints out. The GCC command will fail because we
 +        # haven't supplied a proper program with main(), but that does not
 +        # matter. This function will return the full path of the requested library
-+        expr = os.fsencode(r'^[^\(\)\s]*%s[^\(\)\s]*' % re.escape(name))
++        expr = r'^[^\(\)\s]*%s[^\(\)\s]*' % re.escape(name)
 +        c_compiler = shutil.which('gcc')
 +        if not c_compiler:
 +            c_compiler = shutil.which('cc')
@@ -114,7 +114,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              if libpath:
                  for d in libpath.split(':'):
 -                    cmd.extend(['-L', d])
-+                    if stubs not in d.split('/'):
++                    if 'stubs' not in d.split('/'):
 +                        cmd.extend(['-L', d])
              cmd.extend(['-o', os.devnull, '-l%s' % name])
              result = None

From d85a792de10d5878af39e976cbe7a0d5bc0b444b Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Thu, 31 Jul 2025 16:10:26 +0200
Subject: [PATCH 08/25] Add comment about stubs and update checksum

---
 easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb | 2 +-
 .../easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch     | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 0207bc730c1d..dca78c6f7e81 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -12,7 +12,7 @@ source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 patches_filter_ld_library_path = ['Python-3.11.5-custom-ctypes.patch']
 checksums_filter_ld_library_path = [
-    {'Python-3.11.5-custom-ctypes.patch': '33b5e8612db313a54883c3c3539e84d996e31201ac9a340bec30c1e43cd3d4ac'}
+    {'Python-3.11.5-custom-ctypes.patch': '8de60dc08e736d416b026bc33d7d50dffb4469eb2b1f5bd0b2b54d4029194e68'}
 ]
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index 95aeffcf7da1..b1528ddfdd46 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -104,7 +104,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              except OSError:
                  pass
  
-@@ -301,10 +350,12 @@
+@@ -301,10 +350,13 @@
              # See issue #9998 for why this is needed
              expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
              cmd = ['ld', '-t']
@@ -114,6 +114,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              if libpath:
                  for d in libpath.split(':'):
 -                    cmd.extend(['-L', d])
++                    # Needed to avoid searching on CUDA stubs
 +                    if 'stubs' not in d.split('/'):
 +                        cmd.extend(['-L', d])
              cmd.extend(['-o', os.devnull, '-l%s' % name])

From 2804386f617904f6ec076fc0377d69b2573458fc Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Thu, 7 Aug 2025 16:50:57 +0200
Subject: [PATCH 09/25] Enhance regex to filter stubs on gcc based library
 search

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb  |  2 +-
 .../Python/Python-3.11.5-custom-ctypes.patch  | 22 +++++++++++++------
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index dca78c6f7e81..ae1e996cb0ef 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -12,7 +12,7 @@ source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 patches_filter_ld_library_path = ['Python-3.11.5-custom-ctypes.patch']
 checksums_filter_ld_library_path = [
-    {'Python-3.11.5-custom-ctypes.patch': '8de60dc08e736d416b026bc33d7d50dffb4469eb2b1f5bd0b2b54d4029194e68'}
+    {'Python-3.11.5-custom-ctypes.patch': '8ae3efc47dd202b600de8249df31b8be252814933b8339ba42fe5c2e0d9adb14'}
 ]
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index b1528ddfdd46..7e73f4a47dc8 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -29,10 +29,16 @@ diff -ruN Python-3.11.5/Lib/ctypes/__init__.py Python-3.11.5.patched/Lib/ctypes/
                 e.g., "libFOO.a(libFOO.so)" - this is taken to be an
 diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util.py
 --- Python-3.11.5/Lib/ctypes/util.py	2023-08-24 14:09:18.000000000 +0200
-+++ Python-3.11.5.patched/Lib/ctypes/util.py	2025-07-30 16:39:37.423162529 +0200
-@@ -148,6 +148,53 @@
++++ Python-3.11.5.patched/Lib/ctypes/util.py	2025-08-07 16:37:14.337414617 +0200
+@@ -146,8 +146,60 @@
+             # shared objects. See bpo-41976 for more details
+             if not _is_elf(file):
                  continue
-             return os.fsdecode(file)
+-            return os.fsdecode(file)
++            file = os.fsdecode(file)
++            if re.search(r'cuda.*stubs', file, re.IGNORECASE):
++                continue
++            return file
  
 +    def _findLib_gcc_fullname(name):
 +        # Run GCC's linker with the -t (aka --trace) option and examine the
@@ -80,11 +86,13 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
 +            # shared objects. See bpo-41976 for more details
 +            if not _is_elf(file):
 +                continue
++            if re.search(r'cuda.*stubs', file, re.IGNORECASE):
++                continue
 +            return file
  
      if sys.platform == "sunos5":
          # use /usr/ccs/bin/dump on solaris
-@@ -283,7 +330,8 @@
+@@ -283,7 +335,8 @@
              abi_type = mach_map.get(machine, 'libc6')
  
              # XXX assuming GLIBC's ldconfig (with option -p)
@@ -94,7 +102,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              regex = os.fsencode(regex % (re.escape(name), abi_type))
              try:
                  with subprocess.Popen(['/sbin/ldconfig', '-p'],
-@@ -293,7 +341,8 @@
+@@ -293,7 +346,8 @@
                                        env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
                      res = re.search(regex, p.stdout.read())
                      if res:
@@ -104,7 +112,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              except OSError:
                  pass
  
-@@ -301,10 +350,13 @@
+@@ -301,10 +355,13 @@
              # See issue #9998 for why this is needed
              expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
              cmd = ['ld', '-t']
@@ -120,7 +128,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              cmd.extend(['-o', os.devnull, '-l%s' % name])
              result = None
              try:
-@@ -325,9 +375,15 @@
+@@ -325,9 +382,15 @@
              return result
  
          def find_library(name):

From ac3dd005ed9a1c9f1bf62938c658502ab8273153 Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@int4.local.snellius.surf.nl>
Date: Wed, 27 Aug 2025 11:58:16 +0200
Subject: [PATCH 10/25] Reduce to a single custom keyword

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb         | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index ae1e996cb0ef..cef95b2c6065 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -10,16 +10,16 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-patches_filter_ld_library_path = ['Python-3.11.5-custom-ctypes.patch']
-checksums_filter_ld_library_path = [
-    {'Python-3.11.5-custom-ctypes.patch': '8ae3efc47dd202b600de8249df31b8be252814933b8339ba42fe5c2e0d9adb14'}
-]
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_custom_ctypes = ['Python-3.11.5-custom-ctypes.patch']
+
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
+    {'Python-3.11.5-custom-ctypes.patch': '8ae3efc47dd202b600de8249df31b8be252814933b8339ba42fe5c2e0d9adb14'}
 ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
 builddependencies = [
     ('UnZip', '6.0'),
     ('pkgconf', '2.0.3'),

From b9c908632e7686943d25d33c9e3614d4ae69d55e Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@int4.local.snellius.surf.nl>
Date: Wed, 27 Aug 2025 12:59:15 +0200
Subject: [PATCH 11/25] adapt to the fact that the patch_custom_ctypes is now a
 string, not a list

---
 easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index cef95b2c6065..4bfacb46c174 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -13,7 +13,7 @@ sources = [SOURCE_TGZ]
 
 # Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
 # In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
-patch_custom_ctypes = ['Python-3.11.5-custom-ctypes.patch']
+patch_custom_ctypes = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},

From bd768bd82b9730cf4861edc13d006aec754a158a Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Wed, 27 Aug 2025 17:37:21 +0200
Subject: [PATCH 12/25] Add comment about preventing using stubs provided cuda
 libraries

---
 .../p/Python/Python-3.11.5-custom-ctypes.patch      | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index 7e73f4a47dc8..f4fc2b6fecb4 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -29,13 +29,14 @@ diff -ruN Python-3.11.5/Lib/ctypes/__init__.py Python-3.11.5.patched/Lib/ctypes/
                 e.g., "libFOO.a(libFOO.so)" - this is taken to be an
 diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util.py
 --- Python-3.11.5/Lib/ctypes/util.py	2023-08-24 14:09:18.000000000 +0200
-+++ Python-3.11.5.patched/Lib/ctypes/util.py	2025-08-07 16:37:14.337414617 +0200
-@@ -146,8 +146,60 @@
++++ Python-3.11.5.patched/Lib/ctypes/util.py	2025-08-27 17:30:51.896990336 +0200
+@@ -146,8 +146,61 @@
              # shared objects. See bpo-41976 for more details
              if not _is_elf(file):
                  continue
 -            return os.fsdecode(file)
 +            file = os.fsdecode(file)
++            # Prevent using CUDA libraries provided on stubs
 +            if re.search(r'cuda.*stubs', file, re.IGNORECASE):
 +                continue
 +            return file
@@ -92,7 +93,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
  
      if sys.platform == "sunos5":
          # use /usr/ccs/bin/dump on solaris
-@@ -283,7 +335,8 @@
+@@ -283,7 +336,8 @@
              abi_type = mach_map.get(machine, 'libc6')
  
              # XXX assuming GLIBC's ldconfig (with option -p)
@@ -102,7 +103,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              regex = os.fsencode(regex % (re.escape(name), abi_type))
              try:
                  with subprocess.Popen(['/sbin/ldconfig', '-p'],
-@@ -293,7 +346,8 @@
+@@ -293,7 +347,8 @@
                                        env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
                      res = re.search(regex, p.stdout.read())
                      if res:
@@ -112,7 +113,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              except OSError:
                  pass
  
-@@ -301,10 +355,13 @@
+@@ -301,10 +356,13 @@
              # See issue #9998 for why this is needed
              expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
              cmd = ['ld', '-t']
@@ -128,7 +129,7 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              cmd.extend(['-o', os.devnull, '-l%s' % name])
              result = None
              try:
-@@ -325,9 +382,15 @@
+@@ -325,9 +383,15 @@
              return result
  
          def find_library(name):

From aef6e5393006d5318b51740cfb2e740a621ca530 Mon Sep 17 00:00:00 2001
From: Danilo Gonzalez <dagonzalezfo@gmail.com>
Date: Wed, 27 Aug 2025 17:42:16 +0200
Subject: [PATCH 13/25] update patch checksum

---
 easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 4bfacb46c174..38ec54396952 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -17,7 +17,7 @@ patch_custom_ctypes = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
-    {'Python-3.11.5-custom-ctypes.patch': '8ae3efc47dd202b600de8249df31b8be252814933b8339ba42fe5c2e0d9adb14'}
+    {'Python-3.11.5-custom-ctypes.patch': '08ff708ae275ef2c6ccf4d73671e535840b72566b8649f855f954700ba9aaedd'}
 ]
 
 builddependencies = [

From 05a15b3a0c443dfe87f51fab1d87fc19d2200287 Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@int4.local.snellius.surf.nl>
Date: Mon, 13 Oct 2025 17:20:22 +0200
Subject: [PATCH 14/25] Deduplicate _findLib_gcc and _findLib_gcc_fullname
 functions. Also, rename the custom keyword in the EasyConfig

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb  |   2 +-
 .../Python/Python-3.11.5-custom-ctypes.patch  | 144 +++++++++---------
 2 files changed, 73 insertions(+), 73 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 38ec54396952..947df866a9a1 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -13,7 +13,7 @@ sources = [SOURCE_TGZ]
 
 # Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
 # In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
-patch_custom_ctypes = 'Python-3.11.5-custom-ctypes.patch'
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index f4fc2b6fecb4..a3190a0e6f26 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -1,9 +1,6 @@
-Override ctypes behavior to enable support for EB provided libraries. 
-This should be only applied if LD_LIBRARY_PATH is disabled. 
-Authors: Danilo Gonzalez (DoItNow group), Caspar van Leeuwen (SURF) and Alan O'cais (CECAM)
-diff -ruN Python-3.11.5/Lib/ctypes/__init__.py Python-3.11.5.patched/Lib/ctypes/__init__.py
---- Python-3.11.5/Lib/ctypes/__init__.py	2023-08-24 14:09:18.000000000 +0200
-+++ Python-3.11.5.patched/Lib/ctypes/__init__.py	2025-07-30 16:29:40.600331232 +0200
+diff -Nru Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__init__.py
+--- Python-3.11.5.orig/Lib/ctypes/__init__.py	2025-10-13 15:58:38.405564000 +0200
++++ Python-3.11.5/Lib/ctypes/__init__.py	2025-10-13 16:01:08.717507706 +0200
 @@ -14,6 +14,9 @@
  
  from struct import calcsize as _calcsize
@@ -27,93 +24,92 @@ diff -ruN Python-3.11.5/Lib/ctypes/__init__.py Python-3.11.5.patched/Lib/ctypes/
          if _sys.platform.startswith("aix"):
              """When the name contains ".a(" and ends with ")",
                 e.g., "libFOO.a(libFOO.so)" - this is taken to be an
-diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util.py
---- Python-3.11.5/Lib/ctypes/util.py	2023-08-24 14:09:18.000000000 +0200
-+++ Python-3.11.5.patched/Lib/ctypes/util.py	2025-08-27 17:30:51.896990336 +0200
-@@ -146,8 +146,61 @@
+diff -Nru Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
+--- Python-3.11.5.orig/Lib/ctypes/util.py	2025-10-13 15:58:38.306949000 +0200
++++ Python-3.11.5/Lib/ctypes/util.py	2025-10-13 17:17:07.589997890 +0200
+@@ -99,12 +99,19 @@
+         with open(filename, 'br') as thefile:
+             return thefile.read(4) == elf_header
+ 
+-    def _findLib_gcc(name):
++    def _findLib_gcc(name, name_is_fullname=False):
+         # Run GCC's linker with the -t (aka --trace) option and examine the
+         # library name it prints out. The GCC command will fail because we
+         # haven't supplied a proper program with main(), but that does not
+         # matter.
+-        expr = os.fsencode(r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name))
++        # If the name is a full library name (e.g. libfoo.so), this function calls gcc with -l:<name> instead of
++        # -l<name> and uses a slightly more strict regular expression to avoid matching the error
++        # '/path/to/ld: cannot find -l:libfoo.so: No such file or directory'
++        # since we only want a regex match if the library exists
++        if name_is_fullname:
++            expr = os.fsencode(r'^[^\(\)\s]*%s[^\(\)\s]*' % re.escape(name))
++        else:
++            expr = os.fsencode(r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name))
+ 
+         c_compiler = shutil.which('gcc')
+         if not c_compiler:
+@@ -115,7 +122,10 @@
+ 
+         temp = tempfile.NamedTemporaryFile()
+         try:
+-            args = [c_compiler, '-Wl,-t', '-o', temp.name, '-l' + name]
++            if name_is_fullname:
++                args = [c_compiler, '-Wl,-t', '-o', temp.name, '-l:' + name]
++            else:
++                args = [c_compiler, '-Wl,-t', '-o', temp.name, '-l' + name]
+ 
+             env = dict(os.environ)
+             env['LC_ALL'] = 'C'
+@@ -136,7 +146,12 @@
+                 # Raised if the file was already removed, which is the normal
+                 # behaviour of GCC if linking fails
+                 pass
+-        res = re.findall(expr, trace)
++        # If name_is_fullname, the regex in expr starts wity ^.
++        # Use re.MULTILINE, to make surethat ^ matches the start of EACH line in trace
++        if name_is_fullname:
++            res = re.findall(expr, trace, re.MULTILINE)
++        else:
++            res = re.findall(expr, trace)
+         if not res:
+             return None
+ 
+@@ -146,8 +161,11 @@
              # shared objects. See bpo-41976 for more details
              if not _is_elf(file):
                  continue
 -            return os.fsdecode(file)
+-
 +            file = os.fsdecode(file)
-+            # Prevent using CUDA libraries provided on stubs
-+            if re.search(r'cuda.*stubs', file, re.IGNORECASE):
-+                continue
-+            return file
- 
-+    def _findLib_gcc_fullname(name):
-+        # Run GCC's linker with the -t (aka --trace) option and examine the
-+        # library name it prints out. The GCC command will fail because we
-+        # haven't supplied a proper program with main(), but that does not
-+        # matter. This function will return the full path of the requested library
-+        expr = r'^[^\(\)\s]*%s[^\(\)\s]*' % re.escape(name)
-+        c_compiler = shutil.which('gcc')
-+        if not c_compiler:
-+            c_compiler = shutil.which('cc')
-+        if not c_compiler:
-+            # No C compiler available, give up
-+            return None
-+
-+        temp = tempfile.NamedTemporaryFile()
-+        try:
-+            args = [c_compiler, '-Wl,-t', '-o', temp.name, '-l:' + name]
-+            # print(args)
-+            env = dict(os.environ)
-+            env['LC_ALL'] = 'C'
-+            env['LANG'] = 'C'
-+            try:
-+                proc = subprocess.Popen(args,
-+                                        stdout=subprocess.PIPE,
-+                                        stderr=subprocess.STDOUT,
-+                                        env=env)
-+            except OSError:  # E.g. bad executable
-+                return None
-+            with proc:
-+                trace = proc.stdout.read().decode()
-+        finally:
-+            try:
-+                temp.close()
-+            except FileNotFoundError:
-+                # Raised if the file was already removed, which is the normal
-+                # behaviour of GCC if linking fails
-+                pass
-+        res = re.findall(expr, trace, re.MULTILINE)
-+        if not res:
-+            return None
-+
-+        for file in res:
-+            # Check if the given file is an elf file: gcc can report
-+            # some files that are linker scripts and not actual
-+            # shared objects. See bpo-41976 for more details
-+            if not _is_elf(file):
-+                continue
++            # Avoid returning CUDA stubs libraries, as those are not intended for runtime use
 +            if re.search(r'cuda.*stubs', file, re.IGNORECASE):
 +                continue
 +            return file
  
      if sys.platform == "sunos5":
          # use /usr/ccs/bin/dump on solaris
-@@ -283,7 +336,8 @@
+@@ -283,7 +301,8 @@
              abi_type = mach_map.get(machine, 'libc6')
  
              # XXX assuming GLIBC's ldconfig (with option -p)
 -            regex = r'\s+(lib%s\.[^\s]+)\s+\(%s'
-+            # Regular expresion that captures complete line of ldconfig -p output that matches with library name. 
++            # Regular expresion that captures complete line of ldconfig -p output that matches with library name.
 +            regex = r'\s+(lib%s\.[^\s]+)\s+\(%s\)\s+=>\s+(\S+)'
              regex = os.fsencode(regex % (re.escape(name), abi_type))
              try:
                  with subprocess.Popen(['/sbin/ldconfig', '-p'],
-@@ -293,7 +347,8 @@
+@@ -293,7 +312,8 @@
                                        env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
                      res = re.search(regex, p.stdout.read())
                      if res:
 -                        return os.fsdecode(res.group(1))
-+                        # return the regex second group, that is the library fullpath
++                        # return the regex second group, that is the full path to the library
 +                        return os.fsdecode(res.group(2))
              except OSError:
                  pass
  
-@@ -301,10 +356,13 @@
+@@ -301,10 +321,17 @@
              # See issue #9998 for why this is needed
              expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
              cmd = ['ld', '-t']
@@ -123,13 +119,17 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
              if libpath:
                  for d in libpath.split(':'):
 -                    cmd.extend(['-L', d])
-+                    # Needed to avoid searching on CUDA stubs
-+                    if 'stubs' not in d.split('/'):
++                    # Avoid picking up CUDA stubs libraries, as those are not intended for runtime use
++                    parts = d.split('/')
++                    # We want to add 'd' in all cases EXCEPT if the path contains both CUDA (as partial
++                    # directory name) and stubs (as full directory name). I.e. /my/bar/stubs and /my/cudafoo
++                    # will be added to cmd, but /my/cudafoo/bar/stubs won't be
++                    if not (any('cuda' in p.lower() for p in parts) and 'stubs' in parts):
 +                        cmd.extend(['-L', d])
              cmd.extend(['-o', os.devnull, '-l%s' % name])
              result = None
              try:
-@@ -325,9 +383,15 @@
+@@ -325,9 +352,15 @@
              return result
  
          def find_library(name):
@@ -137,14 +137,14 @@ diff -ruN Python-3.11.5/Lib/ctypes/util.py Python-3.11.5.patched/Lib/ctypes/util
 -            return _findSoname_ldconfig(name) or \
 -                   _get_soname(_findLib_gcc(name)) or _get_soname(_findLib_ld(name))
 +            # Redefine find_library function, it will return the provided name if
-+            # path exist, else it will use the set of functions to find the full library path. 
-+            # it will return the one that has a match. 
++            # path exist, else it will use the set of functions to find the full library path.
++            # it will return the one that has a match.
 +            if os.path.exists(name):
 +                return name
 +            else:
 +                return _findSoname_ldconfig(name) or \
 +                   _findLib_gcc(name) or _findLib_ld(name) or \
-+                   _findLib_gcc_fullname(name) 
++                   _findLib_gcc(name, name_is_fullname=True)
  
  ################################################################
  # test code

From f7e8762970e9d7af1ceb180a2b4b73b8050557ce Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@int4.local.snellius.surf.nl>
Date: Tue, 14 Oct 2025 10:57:58 +0200
Subject: [PATCH 15/25] Update checksum for new patch

---
 easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 947df866a9a1..780c062109dd 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
-    {'Python-3.11.5-custom-ctypes.patch': '08ff708ae275ef2c6ccf4d73671e535840b72566b8649f855f954700ba9aaedd'}
+    {'Python-3.11.5-custom-ctypes.patch': '595363e67921ee1fa91ee6b62d1c240cc1649334fef312925fc3811f8d96115c'}
 ]
 
 builddependencies = [

From 7c0df89fd4d567eabec40b81f0947e8ea7885c10 Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@int4.local.snellius.surf.nl>
Date: Tue, 14 Oct 2025 11:45:43 +0200
Subject: [PATCH 16/25] Update patch description. Update checksum for patch

---
 .../p/Python/Python-3.11.5-GCCcore-13.2.0.eb         |  2 +-
 .../p/Python/Python-3.11.5-custom-ctypes.patch       | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index 780c062109dd..d5516ea39750 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
-    {'Python-3.11.5-custom-ctypes.patch': '595363e67921ee1fa91ee6b62d1c240cc1649334fef312925fc3811f8d96115c'}
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index a3190a0e6f26..a9f21a4c9fca 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -1,3 +1,15 @@
+Ctypes heavily relies on LD_LIBRARY_PATH in it's find_library, ctypes.CDLL, ctypes.cdll.LoadLibrary functions.
+This patch is meant for systems where LD_LIBRARY_PATH is filtered. It will rely on LIBRARY_PATH instead.
+It makes the following essential changes:
+- Whereever find_library searched LD_LIBRARY_PATH, LIBRARY_PATH will be searched instead
+- find_library is adapted so that it returns the full library path, not just the library name, which replaces
+  https://github.com/easybuilders/easybuild-easyblocks/pull/3352
+- The internal function _findLib_gcc, one of the functions called by find_library to locate libraries, is adapted
+  so that it also works when called by full library name (e.g. libfoo.so.1) instead of the short name (foo) only
+  This is necessary since CDLL is typically called by full name, and needs to be able to call find_library 9see below)
+- The initialization of CDLL is adapted so that it calls find_library. Then, it overwrites the name
+  with the full library path. This defers all the library localization issues to the (patched) find_library
+Authors: Danilo Gonzalez (DoItNow group), Caspar van Leeuwen (SURF) and Alan O'cais (CECAM)
 diff -Nru Python-3.11.5.orig/Lib/ctypes/__init__.py Python-3.11.5/Lib/ctypes/__init__.py
 --- Python-3.11.5.orig/Lib/ctypes/__init__.py	2025-10-13 15:58:38.405564000 +0200
 +++ Python-3.11.5/Lib/ctypes/__init__.py	2025-10-13 16:01:08.717507706 +0200

From 31878d13262612d9a6d9f16a3402b9b15029ad37 Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@tcn377.local.snellius.surf.nl>
Date: Fri, 17 Oct 2025 00:19:54 +0200
Subject: [PATCH 17/25] Try to apply the ctypes patch to other python versions
 as well

---
 .../p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb      | 10 +++++++++-
 .../p/Python/Python-3.10.4-GCCcore-11.3.0.eb           | 10 +++++++++-
 .../p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb      | 10 +++++++++-
 .../p/Python/Python-3.10.8-GCCcore-12.2.0.eb           | 10 +++++++++-
 .../p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb      | 10 +++++++++-
 .../p/Python/Python-3.11.3-GCCcore-12.3.0.eb           | 10 +++++++++-
 .../p/Python/Python-3.12.3-GCCcore-13.3.0.eb           |  6 ++++++
 .../p/Python/Python-3.13.1-GCCcore-14.2.0.eb           |  6 ++++++
 .../p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb       | 10 +++++++++-
 .../p/Python/Python-3.9.5-GCCcore-10.3.0.eb            | 10 +++++++++-
 .../p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb       | 10 +++++++++-
 .../p/Python/Python-3.9.6-GCCcore-11.2.0.eb            | 10 +++++++++-
 12 files changed, 102 insertions(+), 10 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
index a8c15654825d..383b2b124b26 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
@@ -11,7 +11,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.10.4.tgz: 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
index 0e403f9e2889..3e85e8e6a7ae 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
@@ -10,7 +10,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.10.4.tgz: 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
index 695a65cfdb50..ca1e5d9c46ae 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
@@ -11,7 +11,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['f400c3fb394b8bef1292f6dc1292c5fadc3533039a5bc0c3e885f3e16738029a']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.10.8.tgz': 'f400c3fb394b8bef1292f6dc1292c5fadc3533039a5bc0c3e885f3e16738029a'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
index 8d99285f8092..589c64a5be1c 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
@@ -10,7 +10,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['f400c3fb394b8bef1292f6dc1292c5fadc3533039a5bc0c3e885f3e16738029a']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.10.8.tgz': 'f400c3fb394b8bef1292f6dc1292c5fadc3533039a5bc0c3e885f3e16738029a'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
index 9dc98d9f22d2..08d83607d72f 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
@@ -11,7 +11,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['2411c74bda5bbcfcddaf4531f66d1adc73f247f529aee981b029513aefdbf849']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.11.2.tgz': '2411c74bda5bbcfcddaf4531f66d1adc73f247f529aee981b029513aefdbf849'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
index 09dc30f2178b..cb60144fd64f 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
@@ -10,7 +10,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['1a79f3df32265d9e6625f1a0b31c28eb1594df911403d11f3320ee1da1b3e048']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.11.3.tgz': '1a79f3df32265d9e6625f1a0b31c28eb1594df911403d11f3320ee1da1b3e048'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
index 9f6d1a682342..9452e9a26468 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
@@ -11,9 +11,15 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 patches = ['Python-3.12.3_avoid-tkinter-build.patch']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
 checksums = [
     {'Python-3.12.3.tgz': 'a6b9459f45a6ebbbc1af44f5762623fa355a0c87208ed417628b379d762dddb0'},
     {'Python-3.12.3_avoid-tkinter-build.patch': '34fa44ca67fc08d41c58db2e289317f12f32777a352a982dca2e63459fc089e3'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
index 7e65c52a5e8f..93df74e55b8c 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
@@ -11,9 +11,15 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 patches = ['Python-3.12.3_avoid-tkinter-build.patch']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
 checksums = [
     {'Python-3.13.1.tgz': '1513925a9f255ef0793dbf2f78bb4533c9f184bdd0ad19763fd7f47a400a7c55'},
     {'Python-3.12.3_avoid-tkinter-build.patch': '34fa44ca67fc08d41c58db2e289317f12f32777a352a982dca2e63459fc089e3'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
index 25d4981ffe0b..478561eaf7d2 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
@@ -11,7 +11,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['e0fbd5b6e1ee242524430dee3c91baf4cbbaba4a72dd1674b90fda87b713c7ab']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.9.5.tgz': 'e0fbd5b6e1ee242524430dee3c91baf4cbbaba4a72dd1674b90fda87b713c7ab'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
index 613bc37bfc08..6bf62a3bec77 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
@@ -10,7 +10,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['e0fbd5b6e1ee242524430dee3c91baf4cbbaba4a72dd1674b90fda87b713c7ab']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.9.5.tgz': 'e0fbd5b6e1ee242524430dee3c91baf4cbbaba4a72dd1674b90fda87b713c7ab'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
index d568ea3f8c84..26c7c0875f42 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
@@ -11,7 +11,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['d0a35182e19e416fc8eae25a3dcd4d02d4997333e4ad1f2eee6010aadc3fe866']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.9.6.tgz': 'd0a35182e19e416fc8eae25a3dcd4d02d4997333e4ad1f2eee6010aadc3fe866'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
index 8f2efa940cc1..e92dc3c1ba9e 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
@@ -10,7 +10,15 @@ toolchainopts = {'pic': True}
 
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
-checksums = ['d0a35182e19e416fc8eae25a3dcd4d02d4997333e4ad1f2eee6010aadc3fe866']
+
+# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
+
+checksums = [
+    {'Python-3.9.6.tgz': 'd0a35182e19e416fc8eae25a3dcd4d02d4997333e4ad1f2eee6010aadc3fe866'},
+    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+]
 
 builddependencies = [
     ('UnZip', '6.0'),

From c151fd3f2d5d3da35cbeac3b456966af545425b9 Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@tcn377.local.snellius.surf.nl>
Date: Fri, 17 Oct 2025 00:26:46 +0200
Subject: [PATCH 18/25] Fix trailing whitespace

---
 easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
index 79a51a2b05df..932439529fa6 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
@@ -18,7 +18,7 @@ patches = [
 
 # Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
 # In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
-patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'  
+patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.13.1.tgz': '1513925a9f255ef0793dbf2f78bb4533c9f184bdd0ad19763fd7f47a400a7c55'},

From 19e83214741a520839930bc1b7dc6b69c6afa866 Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@tcn377.local.snellius.surf.nl>
Date: Fri, 17 Oct 2025 14:40:58 +0200
Subject: [PATCH 19/25] Add missing quote

---
 .../easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
index 383b2b124b26..93c46b6dd89b 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
@@ -17,7 +17,7 @@ sources = [SOURCE_TGZ]
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
-    {'Python-3.10.4.tgz: 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
+    {'Python-3.10.4.tgz': 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
     {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
 ]
 

From 0d4ff60da38c0618cfc6068c98ec9394d746b53b Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@tcn1190.local.snellius.surf.nl>
Date: Fri, 17 Oct 2025 21:15:56 +0200
Subject: [PATCH 20/25] Fix quote

---
 easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
index 3e85e8e6a7ae..195e325c8a44 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
@@ -16,7 +16,7 @@ sources = [SOURCE_TGZ]
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
-    {'Python-3.10.4.tgz: 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
+    {'Python-3.10.4.tgz': 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
     {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
 ]
 

From f682e59361c3a3939ab7d72f0eedfc3b78e00ecd Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <33718780+casparvl@users.noreply.github.com>
Date: Mon, 20 Oct 2025 14:31:55 +0200
Subject: [PATCH 21/25] Update
 easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch

Make sure that we only return the plain 'name' argument, if this is indeed a full filepath. This patch changes the find_library behaviour to only return full filepaths, and it should do so in _all_ code paths.
---
 .../easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
index a9f21a4c9fca..f81e77962d26 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-custom-ctypes.patch
@@ -151,7 +151,7 @@ diff -Nru Python-3.11.5.orig/Lib/ctypes/util.py Python-3.11.5/Lib/ctypes/util.py
 +            # Redefine find_library function, it will return the provided name if
 +            # path exist, else it will use the set of functions to find the full library path.
 +            # it will return the one that has a match.
-+            if os.path.exists(name):
++            if os.path.isabs(name) and os.path.exists(name):
 +                return name
 +            else:
 +                return _findSoname_ldconfig(name) or \

From d3b2d8afc74f087f2687dd5a190ff0e0662024ff Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@tcn424.local.snellius.surf.nl>
Date: Mon, 20 Oct 2025 16:22:43 +0200
Subject: [PATCH 22/25] Update checksums

---
 .../easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb   | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb  | 2 +-
 .../easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb   | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb  | 2 +-
 .../easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb   | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb  | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb  | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb  | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb  | 2 +-
 .../easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb    | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb   | 2 +-
 .../easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb    | 2 +-
 easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb   | 2 +-
 13 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
index 93c46b6dd89b..ea5b9432000e 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
@@ -18,7 +18,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.10.4.tgz': 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
index 195e325c8a44..d42dbc0991e9 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.10.4.tgz': 'f3bcc65b1d5f1dc78675c746c98fcee823c038168fc629c5935b044d0911ad28'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
index ca1e5d9c46ae..e7034e9496ae 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
@@ -18,7 +18,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.10.8.tgz': 'f400c3fb394b8bef1292f6dc1292c5fadc3533039a5bc0c3e885f3e16738029a'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
index 589c64a5be1c..683ce93a517e 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.10.8.tgz': 'f400c3fb394b8bef1292f6dc1292c5fadc3533039a5bc0c3e885f3e16738029a'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
index 08d83607d72f..1801c5848653 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
@@ -18,7 +18,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.2.tgz': '2411c74bda5bbcfcddaf4531f66d1adc73f247f529aee981b029513aefdbf849'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
index cb60144fd64f..c2d6af9b58a6 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.3.tgz': '1a79f3df32265d9e6625f1a0b31c28eb1594df911403d11f3320ee1da1b3e048'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index d5516ea39750..e89bb22bfcd4 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.11.5.tgz': 'a12a0a013a30b846c786c010f2c19dd36b7298d888f7c4bd1581d90ce18b5e58'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
index 9452e9a26468..15f01ddd8984 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
@@ -19,7 +19,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 checksums = [
     {'Python-3.12.3.tgz': 'a6b9459f45a6ebbbc1af44f5762623fa355a0c87208ed417628b379d762dddb0'},
     {'Python-3.12.3_avoid-tkinter-build.patch': '34fa44ca67fc08d41c58db2e289317f12f32777a352a982dca2e63459fc089e3'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
index 932439529fa6..b430dad61153 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
@@ -24,7 +24,7 @@ checksums = [
     {'Python-3.13.1.tgz': '1513925a9f255ef0793dbf2f78bb4533c9f184bdd0ad19763fd7f47a400a7c55'},
     {'Python-3.12.3_avoid-tkinter-build.patch': '34fa44ca67fc08d41c58db2e289317f12f32777a352a982dca2e63459fc089e3'},
     {'Python-3.13.1_runshared-ld-preload.patch': 'ca9ec56c71aafa881e7ddf6fba23fbecc016be48c2d912e5ccd92962ddd38edf'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'},
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'},
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
index 478561eaf7d2..28e28ffca0dc 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
@@ -18,7 +18,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.9.5.tgz': 'e0fbd5b6e1ee242524430dee3c91baf4cbbaba4a72dd1674b90fda87b713c7ab'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
index 6bf62a3bec77..803e841169df 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.9.5.tgz': 'e0fbd5b6e1ee242524430dee3c91baf4cbbaba4a72dd1674b90fda87b713c7ab'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
index 26c7c0875f42..48b3e0a53f50 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
@@ -18,7 +18,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.9.6.tgz': 'd0a35182e19e416fc8eae25a3dcd4d02d4997333e4ad1f2eee6010aadc3fe866'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
index e92dc3c1ba9e..a1e3b8a0716c 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
@@ -17,7 +17,7 @@ patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
     {'Python-3.9.6.tgz': 'd0a35182e19e416fc8eae25a3dcd4d02d4997333e4ad1f2eee6010aadc3fe866'},
-    {'Python-3.11.5-custom-ctypes.patch': '477a9453395f5298a24f9929ec4b9ecf32259ee4e121cb15ae45e0ad0c195dbe'}
+    {'Python-3.11.5-custom-ctypes.patch': 'b29c22f47587460149e05296ff09b29bf790a83e2b3b13fb2f42f5f236ad8ea7'}
 ]
 
 builddependencies = [

From 53bcda3721fc5f24be8f34b5e8186968b3cb7b4c Mon Sep 17 00:00:00 2001
From: Kenneth Hoste <kenneth.hoste@ugent.be>
Date: Wed, 22 Oct 2025 19:21:09 +0200
Subject: [PATCH 23/25] update test_pr_sha256_checksums to take into account
 checksum for patch_ctypes_ld_library_path in Python easyconfigs

---
 test/easyconfigs/easyconfigs.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/test/easyconfigs/easyconfigs.py b/test/easyconfigs/easyconfigs.py
index 003f9726f382..51ea7b3730aa 100644
--- a/test/easyconfigs/easyconfigs.py
+++ b/test/easyconfigs/easyconfigs.py
@@ -1254,6 +1254,28 @@ def test_pr_sha256_checksums(self):
         def is_bundle(ec):
             return ec['easyblock'] in bundle_easyblocks or ec['name'] == 'Clang-AOMP'
         ecs = [ec.copy() if is_bundle(ec) else ec for ec in retained_changed_ecs]
+
+        # remove checksum for patch_ctypes_ld_library_path for Python easyconfigs, if present;
+        # this patch gets added automatically to list of patches by Python easyblock constructor,
+        # and causes check_sha256_checksums to fail because an extra checksum is found
+        for ec in ecs:
+            ec_fn = os.path.basename(ec.path)
+            if ec['name'] == 'Python':
+                patch_ctypes_ld_library_path = ec.get('patch_ctypes_ld_library_path')
+                if patch_ctypes_ld_library_path:
+                    checksums = ec['checksums']
+                    if not isinstance(checksums, list):
+                        self.fail(f"Don't know how to handle non-list value type for checksums in {ec_fn}")
+                    idx_match = None
+                    for idx, entry in enumerate(checksums):
+                        if patch_ctypes_ld_library_path in entry:
+                            idx_match = idx
+                            break
+                    if idx_match:
+                        del checksums[idx]
+                    else:
+                        self.fail(f"No checksum found for {patch_ctypes_ld_library_path} in {ec_fn}")
+
         checksum_issues = check_sha256_checksums(ecs, whitelist=whitelist)
         self.assertTrue(len(checksum_issues) == 0, "No checksum issues:\n%s" % '\n'.join(checksum_issues))
 

From f74dbf004ecb9e079f330f878d093c86a934dfe5 Mon Sep 17 00:00:00 2001
From: Caspar van Leeuwen <casparl@tcn424.local.snellius.surf.nl>
Date: Wed, 22 Oct 2025 21:42:03 +0200
Subject: [PATCH 24/25] Since we modify the checksums list, we need to use
 get_ref, since ec['checksums'] actually returns a copy, not a reference

---
 test/easyconfigs/easyconfigs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/easyconfigs/easyconfigs.py b/test/easyconfigs/easyconfigs.py
index 51ea7b3730aa..c4f671c9736b 100644
--- a/test/easyconfigs/easyconfigs.py
+++ b/test/easyconfigs/easyconfigs.py
@@ -1263,7 +1263,7 @@ def is_bundle(ec):
             if ec['name'] == 'Python':
                 patch_ctypes_ld_library_path = ec.get('patch_ctypes_ld_library_path')
                 if patch_ctypes_ld_library_path:
-                    checksums = ec['checksums']
+                    checksums = ec.get_ref('checksums')
                     if not isinstance(checksums, list):
                         self.fail(f"Don't know how to handle non-list value type for checksums in {ec_fn}")
                     idx_match = None

From 575c58f16b925fe85e0e2891e08bc461e0e82238 Mon Sep 17 00:00:00 2001
From: Kenneth Hoste <kenneth.hoste@ugent.be>
Date: Wed, 22 Oct 2025 22:29:45 +0200
Subject: [PATCH 25/25] trivial tweak in comment for
 patch_ctypes_ld_library_path in Python easyconfigs

---
 .../easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb | 4 ++--
 .../easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb      | 4 ++--
 .../easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb | 4 ++--
 .../easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb      | 4 ++--
 .../easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb | 4 ++--
 .../easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb      | 4 ++--
 .../easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb      | 4 ++--
 .../easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb      | 4 ++--
 .../easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb      | 4 ++--
 .../easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb  | 4 ++--
 easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb | 4 ++--
 .../easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb  | 4 ++--
 easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb | 4 ++--
 13 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
index ea5b9432000e..402289f9c764 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0-bare.eb
@@ -12,8 +12,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
index d42dbc0991e9..761064ed09d7 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.4-GCCcore-11.3.0.eb
@@ -11,8 +11,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
index e7034e9496ae..a7b6a7240ee2 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0-bare.eb
@@ -12,8 +12,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
index 683ce93a517e..4e412ca3e865 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.10.8-GCCcore-12.2.0.eb
@@ -11,8 +11,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
index 1801c5848653..da627837df66 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.2-GCCcore-12.2.0-bare.eb
@@ -12,8 +12,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
index c2d6af9b58a6..8cfeee10ab12 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.3-GCCcore-12.3.0.eb
@@ -11,8 +11,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
index e89bb22bfcd4..e118977eb2ff 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.11.5-GCCcore-13.2.0.eb
@@ -11,8 +11,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
index 15f01ddd8984..089eeb31808d 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.12.3-GCCcore-13.3.0.eb
@@ -12,8 +12,8 @@ source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 patches = ['Python-3.12.3_avoid-tkinter-build.patch']
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
index b430dad61153..4f44ede9666b 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.13.1-GCCcore-14.2.0.eb
@@ -16,8 +16,8 @@ patches = [
     'Python-3.13.1_runshared-ld-preload.patch',
 ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
index 28e28ffca0dc..1e58b588274f 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0-bare.eb
@@ -12,8 +12,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
index 803e841169df..abe22e570006 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.5-GCCcore-10.3.0.eb
@@ -11,8 +11,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
index 48b3e0a53f50..5a65708adb55 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0-bare.eb
@@ -12,8 +12,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [
diff --git a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
index a1e3b8a0716c..ba72e7aa74c3 100644
--- a/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/p/Python/Python-3.9.6-GCCcore-11.2.0.eb
@@ -11,8 +11,8 @@ toolchainopts = {'pic': True}
 source_urls = ['https://www.python.org/ftp/%(namelower)s/%(version)s/']
 sources = [SOURCE_TGZ]
 
-# Like patches, but these will only be applied if EasyBuild is configured to filter LD_LIBRARY_PATH
-# In that scenario, ctypes needs to be patched since it heavily relies on LD_LIBRARY_PATH to find libraries
+# Like patches, but these will only be applied if EasyBuild is configured to filter $LD_LIBRARY_PATH
+# In that scenario, ctypes needs to be patched since it heavily relies on $LD_LIBRARY_PATH to find libraries
 patch_ctypes_ld_library_path = 'Python-3.11.5-custom-ctypes.patch'
 
 checksums = [