[issue30876] SystemError on importing module from unloaded package

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

It is easy to replace the SystemError with a recursive import of the missing parent package. It is enough to remove raising the SystemError.

The other effect of this change is that relative import from the top-level module now raises ImportError "attempted relative import with no known parent package" instead of SystemError "Parent module '' not loaded, cannot perform relative import".

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stage:  -> patch review

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30876>
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