Eryk, > Another common culprit is quick-edit mode, in which case a stray mouse click > can select text, even just a single character. The console pauses while text > is selected.
MYSTERY SOLVED !! THANK YOU !! Apparently, while mouse clicking between windows, I was inadvertently selecting a char on my console, thereby pausing the process that was running. Disabling Quick-Edit mode via the Properties dialog fixes this behavior. I tried other console property setting combinations to block Ctrl+S keyboard behavior, but without success. Not a problem since I'm pretty sure I'm not typing random Ctrl+S keystrokes while working. Thanks again Eryk! Malcolm -- https://mail.python.org/mailman/listinfo/python-list