PyCharm - Python & Django IDE with intelligent code completion, on-the-fly error checking, quick-fixes, and much more...
Spyder - The Scientific Python Development Environment
Thonny - Python IDE for beginners
iPython - iPython provides a rich toolkit to help you make the most out of using Python interactively.
Leo Editor - Text and code editor where Outlines are first class citizen.
PyDev - PyDev is a third-party plug-in for Eclipse.