Error in Python 3.10: module 'collections' has no attribute 'MutableSet'

[sohang3112]

This is because MutableSet was moved from collections module to collections.abc module in Python 3.3. So collections.abc has to be used in Python 3.3+ instead of collections.

Full traceback:

Traceback (most recent call last):
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\observers\__init__.py", line 86, in <module>
    from .read_directory_changes import WindowsApiObserver as Observer
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\observers\read_directory_changes.py", line 38, in <module>
    from watchdog.observers.api import (
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\observers\api.py", line 23, in <module>
    from watchdog.utils.bricks import SkipRepeatsQueue
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\utils\bricks.py", line 175, in <module>
    class OrderedSet(collections.MutableSet):
AttributeError: module 'collections' has no attribute 'MutableSet'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\Scripts\ptw.exe\__main__.py", line 4, in <module>
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\pytest_watch\__init__.py", line 14, in <module>
    from .command import main, doc, version
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\pytest_watch\command.py", line 48, in <module>
    from .watcher import watch
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\pytest_watch\watcher.py", line 18, in <module>
    from watchdog.observers import Observer
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\observers\__init__.py", line 88, in <module>
    from .polling import PollingObserver as Observer
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\observers\polling.py", line 43, in <module>
    from watchdog.observers.api import (
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\observers\api.py", line 23, in <module>
    from watchdog.utils.bricks import SkipRepeatsQueue
  File "C:\Users\SohangChopra\AppData\Local\Programs\Python\Python310\lib\site-packages\watchdog\utils\bricks.py", line 175, in <module>
    class OrderedSet(collections.MutableSet):
AttributeError: module 'collections' has no attribute 'MutableSet'

[sohang3112]

Closing, since this is actually an error in the watchdog library.

[sohang3112]

Actually, this error occurs because of using old watchdog version - latest watchdog version (2.1.9) doesn't have this problem.

[sohang3112]

I have opened a pull request that will close this issue.

[sohang3112]

@joeyespo Did you have a chance yet to review my PR (linked above) that fixes this issue? Please let me know if something in the PR needs to be improved. Thanks in advance 🙂