Free Community Edition — for pure Python coding and learning Intelligent Editor, with code completion, on-the-fly error highlighting, auto-fixes, etc. Automated code refactorings and rich navigation capabilities Integrated debugger and unit testing support Native VCS integrations Customizable UI and key-bindings, with VIM emulation available And much more, all available under the Apache 2 license

via Python IDE & Django IDE for Web developers : JetBrains PyCharm.