Ctrl+C sends EOFError once after cancelling process [duplicate]

So. You've found a pretty old Python bug. It's to do with the async nature of keyboard interrupts, AND how if you send a KeyboardInterrupt to Python while hanging, and it doesn't respond to the interrupt, the second interrupt will raise the even stronger EOFError. However, it seems, that these two collide, if you have an async KeyboardInterrupt caught followed by an input with a second KeyboardInterrupt, there will some stuff left in some buffer, which triggered EOFError.

I know this isn't a great explanation, nor is it very clear. However, it allows for a pretty simple fix. Let the buffer to catch up with all the async interrupts, and than start waiting for an input:

import timedef parse(inp):    time.sleep(1)    print(inp)    if inp == 'e':        return 'exit'while True:    try:        user_in = input("> ").strip()    except (KeyboardInterrupt, Exception) as e:        print(e.__class__.__name__)        continue    if not user_in:        continue    try:        if parse(user_in) == 'exit':            break    except KeyboardInterrupt:        print("Cancelled")        time.sleep(0.1)    # This is the only line that's added

Now doing the same actions you did produces this:

> testCancelled>>>>> KeyboardInterrupt> KeyboardInterrupt> KeyboardInterrupt> KeyboardInterrupt> KeyboardInterrupt>> KeyboardInterrupt>>> KeyboardInterrupt> KeyboardInterrupt>