[issue3417] make the fix_dict fixer smarter

[Collin Winter]

Collin Winter <collinw at gmail.com> added the comment:

I think the proper way to address this is via the confidence levels that
Rodrigo Bernardo Pimentel is adding for his Summer of Code project. The
idea is that you'll be able to say "let me inspect any changes where the
fixer is less than X% confident". fix_dict and for loops would be one
such place.

Until that mechanism is in place, I agree with Raymond that we should
err on the side of correctness.

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nosy: +rbp

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<http://bugs.python.org/issue3417>
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