[issue19421] FileIO destructor imports indirectly the io module at exit

[STINNER Victor]

STINNER Victor added the comment:

I misunderstood the gdb traceback. Display a warning does not reload the io module: in fact, the io module was unloaded and PyImport_ImportModuleLevelObject() already raises an ImportError in this case: ImportError("import of 'io' halted; None in sys.modules"). So nothing else need to be done, I'm now closing the issue.

I created more specific issues about warnings, see issues #19442 and #19466.

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resolution:  -> invalid
status: open -> closed

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<http://bugs.python.org/issue19421>
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