[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

Guido van Rossum added the comment: New changeset 83aef4d34022f293336f606dba8598cc7ac8f9f2 by Miss Islington (bot) in branch '3.10': bpo-43118: Fix bug in inspect.signature around 'base.__text_signature__' (GH-30285) (#30765) https://github.com/python/cpython/commit/83aef4d34022f293336f606db

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

miss-islington added the comment: New changeset 9e3ff821dac05e8fde030ec83bd988f3eba66065 by Miss Islington (bot) in branch '3.9': bpo-43118: Fix bug in inspect.signature around 'base.__text_signature__' (GH-30285) https://github.com/python/cpython/commit/9e3ff821dac05e8fde030ec83bd988f3eba66

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

Change by miss-islington : -- pull_requests: +28952 pull_request: https://github.com/python/cpython/pull/30766 ___ Python tracker ___ __

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

Change by miss-islington : -- nosy: +miss-islington nosy_count: 3.0 -> 4.0 pull_requests: +28951 pull_request: https://github.com/python/cpython/pull/30765 ___ Python tracker _

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

Guido van Rossum added the comment: New changeset 881a763cfe07ef4a5806ec78f13a9bc99e8909dc by Weipeng Hong in branch 'main': bpo-43118: Fix bug in inspect.signature around 'base.__text_signature__' (GH-30285) https://github.com/python/cpython/commit/881a763cfe07ef4a5806ec78f13a9bc99e8909dc

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

Change by Irit Katriel : -- type: -> behavior versions: +Python 3.11 -Python 3.6, Python 3.7, Python 3.8 ___ Python tracker ___ ___

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

Change by hongweipeng : -- nosy: +hongweipeng nosy_count: 1.0 -> 2.0 pull_requests: +28499 stage: -> patch review pull_request: https://github.com/python/cpython/pull/30285 ___ Python tracker ___

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

Komiya Takeshi added the comment: FWIW, I succeeded to inspect the class with importing the constant from the base module as a workaround: ``` import inspect import io from io import DEFAULT_BUFFER_SIZE class MyBufferedReader(io.BufferedReader): """buffer reader class.""" inspect.sig

[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value

New submission from Komiya Takeshi : inspect.signature() raises RuntimeError on failed to resolve the default argument value. For example, it fails to inspect a subclass of io.BufferedReader: Example: ``` import inspect import io class MyBufferedReader(io.BufferedReader): """buffer read