- update to 0.7:
- Add --version and --help options.
- Support `python -m pyflakes` (Python 2.7 and Python 3.x).
- Add attribute `Message.col` to report column offset.
- Do not report redefinition of variable for a variable used in a list
comprehension in a conditional.
- Do not report redefinition of variable for generator expressions and
set or dict comprehensions.
- Do not report undefined name when the code is protected with a
`NameError` exception handler.
- Do not report redefinition of variable when unassigning a module imported
for its side-effect.
- Support special locals like `__tracebackhide__` for py.test.
- Support checking doctests.
- Fix issue with Turkish locale where `'i'.upper() == 'i'` in Python 2.
- Fix detection of variables in augmented assignments.
- Support Python 3 up to 3.3, based on the pyflakes3k project.
- Preserve compatibility with Python 2.5 and all recent versions of Python.
- Support custom reporters in addition to the default Reporter.
- Allow function redefinition for modern property construction via
property.setter/deleter.
- Fix spurious redefinition warnings in conditionals.
- Do not report undefined name in __all__ if import * is used.
- Add WindowsError as a known built-in name on all platforms.
- Support specifying additional built-ins in the `Checker` constructor.
- Don't issue Unused Variable warning when using locals() in current scope.
- Handle problems with the encoding of source files.
- Remove dependency on Twisted for the tests.
- Support `python setup.py test` and `python setup.py develop`.
- Create script using setuptools `entry_points` to support all platforms,