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Description
Bug report
In CPython 3.11, I've noticed that an attempt to copy (combined) regular expression flags fails with an attribute error; like so:
>>> import copy, re>>> copy.copy(re.A | re.I)Traceback (most recent call last): File "<stdin>", line 1, in <module> File "lib/python3.11/copy.py", line 102, in copy return _reconstruct(x, None, *rv) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "lib/python3.11/copy.py", line 265, in _reconstruct y = func(*args) ^^^^^^^^^^^ File "lib/python3.11/enum.py", line 862, in __getattr__ raise AttributeError(name) from None ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^AttributeError: ASCII|IGNORECASEYour environment
- CPython versions tested on: 3.11.0b3
- Operating system and architecture: macOS 10.15.7
Background
This behavior was detected from aCrossHair test failure here, in which we realize possibly symbolic arguments prior to regex compilation. (it's an esoteric use case, and I expect not very high priority)