Cannot wire module with queue.Queue

[ventaquil]

Wiring any module which imports queue.Queue raises error ValueError: no signature found for builtin type <class 'types.GenericAlias'>.

Traceback (most recent call last):
  File "/home/ventaquil/Git/project/package/__main__.py", line 86, in <module>
    sys.exit(main())
  File "/home/ventaquil/Git/project/package/__main__.py", line 67, in main
    container.wire(modules=[http, manager, socketio], packages=[model])
  File "src/dependency_injector/containers.pyx", line 222, in dependency_injector.containers.DynamicContainer.wire
  File "/home/ventaquil/Git/project/cluster/venv/lib/python3.9/site-packages/dependency_injector/wiring.py", line 230, in wire
    _patch_method(member, method_name, method, providers_map)
  File "/home/ventaquil/Git/project/venv/lib/python3.9/site-packages/dependency_injector/wiring.py", line 302, in _patch_method
    reference_injections, reference_closing = _fetch_reference_injections(fn)
  File "/home/ventaquil/Git/project/venv/lib/python3.9/site-packages/dependency_injector/wiring.py", line 336, in _fetch_reference_injections
    signature = inspect.signature(fn)
  File "/usr/lib/python3.9/inspect.py", line 3118, in signature
    return Signature.from_callable(obj, follow_wrapped=follow_wrapped)
  File "/usr/lib/python3.9/inspect.py", line 2867, in from_callable
    return _signature_from_callable(obj, sigcls=cls,
  File "/usr/lib/python3.9/inspect.py", line 2398, in _signature_from_callable
    raise ValueError(
ValueError: no signature found for builtin type <class 'types.GenericAlias'>

[rmk135]

Hi @ventaquil , thanks for reporting the bug. That's serious stuff, will take a look.

[ventaquil]

Hey @rmk135, thanks for response. I have tried quick fix with try...catch block but it's not enough.

[rmk135]

Fixed in 4.10.1.

Looks like it was a Python 3.9 specific problem. Introspection doesn't work for types.GenericAlias. It is used as queue.Queue.__class_getitem__() method:

>>> import inspect
>>> import queue
>>>
>>> inspect.signature(queue.Queue.__class_getitem__)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/Cellar/python@3.9/3.9.1_4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 3130, in signature
    return Signature.from_callable(obj, follow_wrapped=follow_wrapped)
  File "/usr/local/Cellar/python@3.9/3.9.1_4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 2879, in from_callable
    return _signature_from_callable(obj, sigcls=cls,
  File "/usr/local/Cellar/python@3.9/3.9.1_4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 2259, in _signature_from_callable
    sig = _signature_from_callable(
  File "/usr/local/Cellar/python@3.9/3.9.1_4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 2410, in _signature_from_callable
    raise ValueError(
ValueError: no signature found for builtin type <class 'types.GenericAlias'>
>>>
>>>
>>> import types
>>> inspect.signature(types.GenericAlias)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/Cellar/python@3.9/3.9.1_4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 3130, in signature
    return Signature.from_callable(obj, follow_wrapped=follow_wrapped)
  File "/usr/local/Cellar/python@3.9/3.9.1_4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 2879, in from_callable
    return _signature_from_callable(obj, sigcls=cls,
  File "/usr/local/Cellar/python@3.9/3.9.1_4/Frameworks/Python.framework/Versions/3.9/lib/python3.9/inspect.py", line 2410, in _signature_from_callable
    raise ValueError(
ValueError: no signature found for builtin type <class 'types.GenericAlias'>

Thanks a lot for reporting the bug @ventaquil . Closing the issue, reopen if needed.

[ventaquil]

Works perfect! Thank you very much for such quick fix 👍