What is the best alternative to pyflakes?
Pro Works with Vim
Through the plugin ALE.
Pro Easily enable or disable a particular message
Each check in pylint has a unique id, so you can choose to disable or enable that particular message in subsequent executions. Just run -enable-msg or -disable-msg and the message id.
Pro Fine-grained control
In addition to the ability to enable or disable warnings, Pylint also gives the developer a great degree of control through command line options. These range from regular expressions to enforce naming conventions to various settings to watch for complexity issues.
Con May need to compile from source to install it correctly
There are some dependencies from Logilab that Pylint needs. They can easily be found in the README but trying to install them with easy_install can yield some problems with unresolved dependencies.
Pro Integration with build tools like tox
Project-level settings for flake8 are in the tox settings file. It is trivial to run flake8 inside setup.py or pavement.py.
Pro Allows usage of and writing of plugins
Flake8 has the ability to run thrid-party plugins, including plugins you can write yourself. Here you can find a few useful plugins.
Pro Easy to ignore files and lines
Add "noqa" comments to files and lines to skip processing. Code comments make it easy to find and review exceptions with grep.
Pro Powerful type checker
Mypy's type checker checks the types of function parameters, supports type inference, typed collections and has even some support for generics.
Pro Works in a truly static way
Mypy works in a truly static way. The checker makes all the checks before the code is actually run, but it still catches a lot of bugs.
Con Still an experimental project
Mypy is still an unfinished experimental project. It is prone to bugs and to features being changed and removed. Plus, a large part of Python features is yet to be implemented.
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