Text Editor
Atom text editor for free, by the guys behind github - https://atom.io/.
Sublime text editor for free, but asks you to pay - https://www.sublimetext.com/.
Commercial IDE
Komodo IDE has great reviews - https://www.activestate.com/komodo-ide/python-editor.
The all mighty JetBrains PyCharm, offers debugging - https://www.jetbrains.com/pycharm/.
