Pylint is a Python source code analyzer which looks for programming errors, helps enforcing a coding standard and sniffs for some code smells (as defined in Martin Fowler's Refactoring book). Pylint has many rules enabled by default, way too much to silence them all on a minimally sized program. It's highly configurable and handle pragmas to control it from within your code. Additionally, it is possible to write plugins to add your own checks.

It's a free software distributed under the GNU Public Licence.

Features

• Coding Standard:
  • checking line-code's length,
  • checking if variable names are well-formed according to your coding standard
  • checking if imported modules are used
• Error detection
  • checking if declared interfaces are truly implemented
  • checking if modules are imported
  • and much more
• Refactoring help
  • Pylint detects duplicated code
• Fully customizable Modify your pylintrc to customize which errors or conventions are important to you. The big advantage with Pylint is that it is highly configurable, customizable, and you can easily write a small plugin to add a personal feature.
• Editor integration Run it in emacs , vim (pylint.vim, syntastic), eclipse, etc.
• IDE integration Pylint is integrated in various IDEs :
  • Spyder
  • Editra
  • TextMate
  • Eclipse with PyDev
  • etc.
• UML diagrams Pylint is shipped with Pyreverse which creates UML diagrams for python code.
• Continuous integration Pylint can be automated in your project using Apycot, Hudson or Jenkins.
• Extensibility The underlying Astroid library doesn't understand your code ? Contribute a patch to pylint-brain.

Information

• Website: http://www.pylint.org/
• Bitbucket: https://bitbucket.org/logilab/pylint
• Getting Started: http://www.pylint.org/#support
• Community: https://mail.python.org/mailman/listinfo/code-quality