[issue30022] Get rid of using EnvironmentError and IOError

Sat Apr 15 00:15:13 EDT 2017

Terry J. Reedy added the comment:

I checked the patch and it appears to be a clean search/replace.  I assume that the aliases have the same diff in C as in Python.

The only idlelib replacement is in run.py, where I (mistakenly) added IOError in 3.3 and 3.4 as well as in 2.7.  This must have been after a previous global replacement.  I would like this change backported to 3.6 to keep the files identical.

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nosy: +terry.reedy

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<http://bugs.python.org/issue30022>
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