[issue40235] confusing documentation for IOBase.__exit__

[Daniel Holth]

Daniel Holth <dholth at fastmail.fm> added the comment:

Thanks, I'm sorry I didn't save when I was having my strange problem.

The io module is still practically undocumented. It should have examples subclasses for each class, perhaps a link to the PEP and a link to a Python implementation of the module.

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stage:  -> resolved
status: pending -> closed

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