Web programming
Django, pyramid, bottle, flask......
GUI DEVELOPMENT
wxPython, tkinter, PyGtk, PyQt......
Scientific and Numeric
Scipy, Numpy, pandas, seaborn......
Software Development
Buildbot, Trac, Roundup........
System Administration
Ansible, salt, OpenStack..........
Embedded computing
Raspberry Pi, MicroPython, BeagleBone.....
Education
Raspberry Pi, Turtle, Robotics.......
AI &ML
Tensorflow, pandas, Keras, PyTorch...........