[issue3020] doctest should have lib2to3 integration

[Stéphane Wirtel]

Stéphane Wirtel <stephane at wirtel.be> added the comment:

I move this issue to the last stable 3.7 and master.

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nosy: +matrixise
versions: +Python 3.7, Python 3.8 -Python 3.2

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue3020>
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