Pythonista on the App Store on iTunes

Pythonista brings the Zen of Python™ to your iPad or iPhone. Create interactive experiments and prototypes using multi-touch, animations, and sound – or just use the interactive prompt as a powerful calculator. Pythonista is also a great tool for learning Python – The interactive prompt helps you explore the language with code completion, the entire documentation is accessible right within the app and you can get started with lots of ready-to-run examples.

Source: Pythonista on the App Store on iTunes