[issue43118] inspect.signature() raises RuntimeError on failed to resolve the default argument value
Komiya Takeshi
report at bugs.python.org
Wed Feb 3 10:07:05 EST 2021
Komiya Takeshi <i.tkomiya at gmail.com> 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.signature(MyBufferedReader)
```
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<https://bugs.python.org/issue43118>
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