It tells me "Pause the process to use command-line". I cannot pause it from the IDE. I can only stop it, which does accept my input but then promptly raises "KeyboardInterrupt".
Posting as a question because I tend to stumble on SO out of habit, it probably has better SEO, and it's just nice to have interested parties. PyCharm: can't get input() from keyboard while debugging / stepping through was never answered but I doubt it is the same issue.
I have now found the issue and it's to do with my remote interpreter, which was a major influence in my decision to buy.
The code I use to trigger is:
choice = int(input("Choose [0-18]: "))