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Bracket Matching -. .- Line Numbering Smart Indent -. | | .- UML Editing / Viewing Source Control Integration -. | | | | .- Code Folding Error Markup -. | | | | | | .- Code Templates Integrated Python Debugging -. | | | | | | | | .- Unit Testing Multi-Language Support -. | | | | | | | | | | .- GUI Designer (Qt, Eric, etc) Auto Code Completion -. | | | | | | | | | | | | .- Integrated DB Support Commercial/Free -. | | | | | | | | | | | | | | .- Refactoring Cross Platform -. | | | | | | | | | | | | | | | | +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ Atom |Y |F |Y |Y*|Y |Y |Y |Y |Y |Y | |Y |Y | | | | |*many plugins Editra |Y |F |Y |Y | | |Y |Y |Y |Y | |Y | | | | | | Emacs |Y |F |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y | | | | Eric Ide |Y |F |Y | |Y |Y | |Y | |Y | |Y | |Y | | | | Geany |Y |F |Y*|Y | | | |Y |Y |Y | |Y | | | | | |*very limited Gedit |Y |F |Y¹|Y | | | |Y |Y |Y | | |Y²| | | | |¹with plugin; ²sort of Idle |Y |F |Y | |Y | | |Y |Y | | | | | | | | | IntelliJ |Y |CF|Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y | JEdit |Y |F | |Y | | | | |Y |Y | |Y | | | | | | KDevelop |Y |F |Y*|Y | | |Y |Y |Y |Y | |Y | | | | | |*no type inference Komodo |Y |CF|Y |Y |Y |Y |Y |Y |Y |Y | |Y |Y |Y | |Y | | NetBeans* |Y |F |Y |Y |Y | |Y |Y |Y |Y |Y |Y |Y |Y | | |Y |*pre-v7.0 Notepad++ |W |F |Y |Y | |Y*|Y*|Y*|Y |Y | |Y |Y*| | | | |*with plugin Pfaide |W |C |Y |Y | | | |Y |Y |Y | |Y |Y | | | | | PIDA |LW|F |Y |Y | | | |Y |Y |Y | |Y | | | | | |VIM based PTVS |W |F |Y |Y |Y |Y |Y |Y |Y |Y | |Y | | |Y*| |Y |*WPF bsed PyCharm |Y |CF|Y |Y*|Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |*JavaScript PyDev (Eclipse) |Y |F |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y |Y | | | | PyScripter |W |F |Y | |Y |Y | |Y |Y |Y | |Y |Y |Y | | | | PythonWin |W |F |Y | |Y | | |Y |Y | | |Y | | | | | | SciTE |Y |F¹| |Y | |Y | |Y |Y |Y | |Y |Y | | | | |¹Mac version is ScriptDev |W |C |Y |Y |Y |Y | |Y |Y |Y | |Y |Y | | | | | commercial Spyder |Y |F |Y | |Y |Y | |Y |Y |Y | | | | | | | | Sublime Text |Y |CF|Y |Y | |Y |Y |Y |Y |Y | |Y |Y |Y*| | | |extensible w/Python, TextMate |M |F | |Y | | |Y |Y |Y |Y | |Y |Y | | | | | *PythonTestRunner UliPad |Y |F |Y |Y |Y | | |Y |Y | | | |Y |Y | | | | Vim |Y |F |Y |Y |Y |Y |Y |Y |Y |Y | |Y |Y |Y | | | | Visual Studio |W |CF|Y |Y |Y |Y |Y |Y |Y |Y |? |Y |? |? |Y |? |Y | Visual Studio Code|Y |F |Y |Y |Y |Y |Y |Y |Y |Y |? |Y |? |? |? |? |Y |uses plugins WingIde |Y |C |Y |Y*|Y |Y |Y |Y |Y |Y | |Y |Y |Y | | | |*support for C Zeus |W |C | | | | |Y |Y |Y |Y | |Y |Y | | | | | +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ Cross Platform -' | | | | | | | | | | | | | | | | Commercial/Free -' | | | | | | | | | | | | | | '- Refactoring Auto Code Completion -' | | | | | | | | | | | | '- Integrated DB Support Multi-Language Support -' | | | | | | | | | | '- GUI Designer (Qt, Eric, etc) Integrated Python Debugging -' | | | | | | | | '- Unit Testing Error Markup -' | | | | | | '- Code Templates Source Control Integration -' | | | | '- Code Folding Smart Indent -' | | '- UML Editing / Viewing Bracket Matching -' '- Line Numbering

Acronyms used:

L - Linux W - Windows M - Mac C - Commercial F - Free CF - Commercial with Free limited edition ? - To be confirmed

I don't mention basics like syntax highlighting as I expect these by default.

This is a just dry list reflecting your feedback and comments, I am not advocating any of these tools. I will keep updating this list as you keep posting your answers.

PS. Can you help me to add features of the above editors to the list (like auto-complete, debugging, etc.)?

We have a comprehensive wiki page for this question https://wiki.python.org/moin/IntegratedDevelopmentEnvironments

Submit edits to the spreadsheet