wxGlade is a GUI designer written in Python with the popular GUI toolkit wxPython, that helps you create wxWidgets/wxPython user interfaces. It can generate Python, C++, Perl, Lisp and XRC (wxWidgets' XML resources) code.
Regular expressions editor for Python. It is intended for Python programmers that use regular expressions. It has syntax highlighting, brace matching, results coloring, text zooming, RE insertions and more.