Global variables or local accessible

[deanhystad]

Fixing your program is not all that simple. Your program has a design flaw that will eventually result in a recursion limit exceeded exception. This would take a while, so let's speed things up a bit.

import random

def stop():
    main()
 
def Left():
    stop()

def Middle():
    stop()

def Right():
    stop()

def main():
    random.choice((Left, Middle, Right))()

main()

Error:
  File "...", line 7, in stop
    main()
  File "...", line 19, in main
    random.choice((stop, Left, Middle, Right))()

blah, blah, blah calling some function that calls main that calls another function that calls stop() that calls main ... until eventually

  File "C:\Program Files\Python311\Lib\random.py", line 239, in _randbelow_with_getrandbits
    k = n.bit_length()  # don't use (n-1) here because n can be 1
        ^^^^^^^^^^^^^^
RecursionError: maximum recursion depth exceeded while calling a Python object

You should use a loop in main() instead of using recursion. main() should call Left(). Left() should do it's thing and call stop. stop() should do it's thing and end, letting control return to Left(). Left() should execute any remaining code (currently none) and end, letting control return to main().

This does the same thing as above, but it runs forever without consuming more and more resources.

import random

def stop():
    pass
 
def Left():
    stop()

def Middle():
    stop()

def Right():
    stop()

def main():
    while True:
        random.choice((Left, Middle, Right))()

main()