BAD_EXPORTS
What happened
A library file lists its public names in __all__. That list is not a list of names the file defines.
What to do
Write __all__ as a list of the names the file defines, such as __all__ = ["crossed"].
Example
text
strategy.py, line 3: __all__ must be a list of names, like __all__ = ["crossed"] [BAD_EXPORTS]The wording of the message depends on your file, and the code does not. An error stops the file from loading.