Fix deprecation warnings due to invalid escape sequences.

Author: tirkarthi

data/generate_ui.py

@@ -6,7 +6,7 @@
 
 def gen(force=False):
     if sys.platform == "win32":
-        bindir = "c:\Python34\Lib\site-packages\PyQt5"
+        bindir = r"c:\Python34\Lib\site-packages\PyQt5"
     else:
         bindir = "/usr/bin"
 

src/urh/dev/gr/scripts/__create_gr_script.py

@@ -19,7 +19,7 @@
             start_vars, start_blocks = False, True
         elif start_blocks and line.strip().startswith("self."):
             try:
-                used_variables.append(re.search("\(([a-z\_0-9]*)[\)\,]", line).group(1))
+                used_variables.append(re.search(r"\(([a-z\_0-9]*)[\)\,]", line).group(1))
             except AttributeError:
                 pass
         elif line.strip().startswith("# Connections"):

src/urh/dev/native/PlutoSDR.py

@@ -31,7 +31,7 @@ def adapt_num_read_samples_to_sample_rate(cls, sample_rate):
     def setup_device(cls, ctrl_connection: Connection, device_identifier):
         device_identifier = device_identifier if isinstance(device_identifier, str) else ""
         try:
-            device_identifier = re.search("(?<=\[).+?(?=\])", device_identifier).group(0)
+            device_identifier = re.search(r"(?<=\[).+?(?=\])", device_identifier).group(0)
         except (IndexError, AttributeError):
             pass
 

tests/TestInstallation.py

@@ -77,7 +77,7 @@ def test_linux(self):
             self.assertTrue(docker_util.run_image(distribution, rebuild=False), msg=distribution)
 
     def test_windows(self):
-        """
+        r"""
         Run the unittests on Windows + Install via Pip
 
         To Fix Windows Error in Guest OS: