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Modernizes Python code for eventual Python 3 migration. Build on top of 2to3
Python Shell
Branch: master

Bump version number.

Signed-off-by: Daira Hopwood <>
latest commit 8f33bfb889
@daira daira authored


Python           _              _
   _ __  ___  __| |___ _ _ _ _ (_)______
  | '  \/ _ \/ _` / -_) '_| ' \| |_ / -_)
  |_|_|_\___/\__,_\___|_| |_||_|_/__\___|

This library is a very thin wrapper around lib2to3 to utilize it to make Python 2 code more modern with the intention of eventually porting it over to Python 3.

The python-modernize command works like 2to3. Here's how you'd rewrite a single file:

python-modernize -w

It does not guarantee, but it attempts to spit out a codebase compatible with Python 2.6+ or Python 3. The code that it generates has a runtime dependency on six, unless the --no-six option is used. Version 1.8.0 or later of six is recommended. Some of the fixers output code that is not compatible with Python 2.5 or lower.


See the LICENSE file for the license of python-modernize. Using this tool does not affect licensing of the modernized code.

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