[issue21049] Flood of “ImportWarning: sys.meta_path is empty” after exception with socket subclass

[Antoine Pitrou]

Antoine Pitrou added the comment:

Well, basically some sys attributes (including meta_path) are cleaned during shutdown, so if some code executes afterwards and tries to import something, importlib will complain that meta_path is empty.

Unless the warning is genuinely useful, I would suggest simply removing it.

Printing warnings during import can also degenerate into an infinite recursion, if printing the warning needs to import a module, for example:

./python -Wa -c "import sys; sys.meta_path = None; import logging"

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