New submission from Xiang Zhang <[email protected]>:
I see people wrongly write non-str objects in __all__ and the error message for
this case is simply a AttributeError which doesn't reveal the cause directly.
>>> from test import *
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: attribute name must be string, not 'C'
It would be better to make the cause more obvious, like
importlib._bootstrap._handle_fromlist does:
Traceback (most recent call last):
File "/root/cpython/Lib/test/test_importlib/import_/test_fromlist.py", line
166, in test_invalid_type_in_all
self.__import__('pkg', fromlist=['*'])
File "/root/cpython/Lib/importlib/_bootstrap.py", line 1094, in __import__
return _handle_fromlist(module, fromlist, _gcd_import)
File "/root/cpython/Lib/importlib/_bootstrap.py", line 1019, in
_handle_fromlist
recursive=True)
File "/root/cpython/Lib/importlib/_bootstrap.py", line 1014, in
_handle_fromlist
raise TypeError(f"Item in {where} must be str, "
TypeError: Item in pkg.__all__ must be str, not bytes
----------
components: Interpreter Core
messages: 312704
nosy: xiang.zhang
priority: normal
severity: normal
status: open
title: better error message when __all__ contains non-str objects
type: enhancement
versions: Python 3.8
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Python tracker <[email protected]>
<https://bugs.python.org/issue32932>
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