Merge branch 'bugfix/win_path_print' into 'master'

tools: correct printed path on MS Win

See merge request idf/esp-idf!3853

.flake8

@@ -203,7 +203,6 @@ exclude =
         examples/system/ota/otatool/example_test.py,
         examples/wifi/iperf/iperf_test.py,
         examples/wifi/iperf/test_report.py,
-        tools/check_python_dependencies.py,
         tools/ci/apply_bot_filter.py,
         tools/cmake/convert_to_cmake.py,
         tools/esp_app_trace/apptrace_proc.py,

tools/check_python_dependencies.py

@@ -19,19 +19,28 @@ import sys
 import argparse
 try:
     import pkg_resources
-except:
+except Exception:
     print('pkg_resources cannot be imported probably because the pip package is not installed and/or using a '
           'legacy Python interpreter. Please refer to the Get Started section of the ESP-IDF Programming Guide for '
-           'setting up the required packages.')
+          'setting up the required packages.')
     sys.exit(1)
 
+
+def escape_backslash(path):
+    if sys.platform == "win32":
+        # escaped backslashes are necessary in order to be able to copy-paste the printed path
+        return path.replace("\\", "\\\\")
+    else:
+        return path
+
+
 if __name__ == "__main__":
     idf_path = os.getenv("IDF_PATH")
 
     parser = argparse.ArgumentParser(description='ESP32 Python package dependency checker')
     parser.add_argument('--requirements', '-r',
-            help='Path to the requrements file',
-            default=idf_path + '/requirements.txt')
+                        help='Path to the requrements file',
+                        default=os.path.join(idf_path, 'requirements.txt'))
     args = parser.parse_args()
 
     # Special case for MINGW32 Python, needs some packages
@@ -41,13 +50,13 @@ if __name__ == "__main__":
        "/mingw32/bin/python" in sys.executable:
         failed = False
         try:
-            import cryptography
+            import cryptography # noqa: intentionally not used - imported for testing its availability
         except ImportError:
             print("Please run the following command to install MSYS2's MINGW Python cryptography package:")
             print("pacman -Sy mingw-w64-i686-python%d-cryptography" % (sys.version_info[0],))
             failed = True
         try:
-            import setuptools
+            import setuptools # noqa: intentionally not used - imported for testing its availability
         except ImportError:
             print("Please run the following command to install MSYS2's MINGW Python setuptools package:")
             print("pacman -Sy mingw-w64-i686-python%d-setuptools" % (sys.version_info[0],))
@@ -61,7 +70,7 @@ if __name__ == "__main__":
             line = line.strip()
             try:
                 pkg_resources.require(line)
-            except:
+            except Exception:
                 not_satisfied.append(line)
 
     if len(not_satisfied) > 0:
@@ -70,7 +79,7 @@ if __name__ == "__main__":
             print(requirement)
         print('Please refer to the Get Started section of the ESP-IDF Programming Guide for setting up the required '
               'packages. Alternatively, you can run "{} -m pip install --user -r {}" for resolving the issue.'
-              ''.format(sys.executable, args.requirements))
+              ''.format(escape_backslash(sys.executable), escape_backslash(args.requirements)))
         sys.exit(1)
 
     print('Python requirements from {} are satisfied.'.format(args.requirements))