[Python] Python run code while process is running?

Python inject/evaluate/run python code while process is already running, for example, infinite loop

counter = 0
while True:
counter += 1
print(f"baz: {counter}")
time.sleep(1)


I would like to attach/spawn python interpreter (preferably interactive python interpreter) and for example change value of counter

I think this would be very cool & useful for game development where i can write new code and edit values while the game is running.

i was able to do this:

import time
import code
import threading

counter = 0

def start_repl():
code.interact(local=globals())

threading.Thread(target=start_repl, daemon=True).start()

while True:
counter += 1
print(f"baz: {counter}")
time.sleep(1)


but its not that interactive and python prompt and input is in the same terminal as code baz: x output so it makes it cumbersome to use.

by interactive i mean, tab symbol completion in terminal.

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