After reading this rather vague thread... https://groups.google.com/forum/#!topic/comp.lang.python/FVnTe2i0UTY
... I find myself asking why Python doesn't include a standard, non-blocking keyboard input function. I have often wanted one myself. The only way that I've ever achieved this behavior is: 1) by restricting the user to pressing Ctrl-C while the program is running, and catching a KeyboardInterrupt; or 2) loading a heavyweight GUI like wxPython or PyQt, and using its event loop to intercept keyboard events. I gather that non-blocking keyboard input functions aren't the easiest thing to implement. They seem to depend on the operating system. Still, ease of use is a primary goal of Python, and the need for this feature must be common. -- https://mail.python.org/mailman/listinfo/python-list
