jaraco.video implements a framegrabber inteface for Windows Video Capture
devices.
jaraco.video is a port of the VideoCapture module in pure Python using ctypes
and comtypes.
jaraco.video includes a console script "save-frame", which
locates the first video capture device and saves a single frame
to disk as "test.jpg". The command may also be invoked thus:
python -m jaraco.video.capture
This example usage can be seen in the function
jaraco.video.capture:save_frame.