better requirements pinning

Author: mahmoud

.gitignore

@@ -3,6 +3,7 @@ htmlcov/
 tmp.py
 examples/cline/todo.db
 *.py[cod]
+venv*
 
 # emacs
 *~

requirements.in

@@ -1,8 +1,9 @@
 ashes
 boltons
-# when dropping py3.7, can make this >=4.4.0
-chameleon>=4.3.0  # 4.3.0 fixed the long-running dict iterability issue, see chameleon #390
-coverage
+# 4.3.0 fixed the long-running dict iterability issue, see chameleon #390
+chameleon>=4.4.1;python_version >= '3.8'
+chameleon<=3.9.1;python_version < '3.8'
+coverage<=7.2.7
 face
 mako
 pip-tools

requirements.txt

@@ -8,7 +8,8 @@ ashes==19.2.0             # via -r requirements.in
 boltons==23.1.1           # via -r requirements.in, face
 build==1.0.3              # via pip-tools
 cachetools==5.3.2         # via tox
-chameleon>=4.3.0          # via -r requirements.in
+chameleon==3.9.1 ; python_version < "3.8"  # via -r requirements.in
+chameleon==4.4.1 ; python_version >= "3.8"  # via -r requirements.in
 chardet==5.2.0            # via tox
 click==8.1.7              # via pip-tools
 colorama==0.4.6           # via tox
@@ -17,8 +18,7 @@ distlib==0.3.8            # via virtualenv
 exceptiongroup==1.2.0     # via pytest
 face==22.0.0              # via -r requirements.in
 filelock==3.12.2          # via tox, virtualenv
-importlib-metadata==6.7.0  # via build, chameleon, click, mako, pluggy, pytest, tox, virtualenv
-importlib-resources==5.12.0  # via chameleon
+importlib-metadata==6.7.0  # via build, click, mako, pluggy, pytest, tox, virtualenv
 iniconfig==2.0.0          # via pytest
 mako==1.2.4               # via -r requirements.in
 markupsafe==2.1.3         # via mako
@@ -37,7 +37,7 @@ typing-extensions==4.7.1  # via importlib-metadata, platformdirs, tox
 virtualenv==20.25.0       # via tox
 werkzeug==1.0.1           # via -r requirements.in, secure-cookie
 wheel==0.42.0             # via pip-tools
-zipp==3.15.0              # via importlib-metadata, importlib-resources
+zipp==3.15.0              # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 # pip

setup.py

@@ -55,7 +55,7 @@ def import_path(module_name, path):
       license=__license__,
       platforms='any',
       tests_require=[
-          'chameleon>=4.4.0',
+          'chameleon>=4.4.1',
           'Mako', 
           'pytest', 
           'psutil'],