[issue17823] 2to3 fixers for missing codecs

[Nick Coghlan]

Nick Coghlan added the comment:

Switch direction of dependency to make this fixer rely on restoring the codec aliases in issue 7475 first.

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dependencies: +codecs missing: base64 bz2 hex zlib hex_codec ...

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17823>
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