[issue40723] IDLE: make autocomplete test run without __main__.__file__

[Florian Dahlitz]

Florian Dahlitz <f2dahlitz at freenet.de> added the comment:

I was able to reproduce the reported issue and the suggested fix worked fine. Is there anything else missing like documentation note?

I would like to submit a PR for this @terry.reedy

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nosy: +DahlitzFlorian

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40723>
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