如何线程化两个函数，其中一个 output 影响其他动作

Question

Here's my code:

import time
import keyboard #pip install keyboard - could use pynput listener instead.
from threading import Thread

hshtag = int(0)
done = False
fire = False


def StopStart(fire):
    while not done:
        global fire
        if keyboard.is_pressed('#'):
            hshtag = hshtag + 1
            if hshtag % 2 ==0:
                fire = False
            else:
                fire = True
        return fire


def NormalFire():
    while not done:
        global fire
        if fire == True:
            #do x        
        else:
            pass

t1 = Thread(target = StopStart)
t2 = Thread(target = NormalFire(fire))
t1.start()
t2.start()

The problem is function StopStart (should) effect what function Normalfire does but as the function only accepts a value for fire when it starts running (so it doesn't work). What I want is change what function normalfire does with function stopstart. and if you're wondering why I am using threading it because '#do x' actually takes a while to work so as one continuous script if I clicked hash at the wrong time it wouldn't stop. Maybe I could do this with classes instead but im not good with classes so if someone could either help with that or fix the above code that would be great thanks.

New attempt at explaining what's wrong with the top code - Ok, so both functions should be running simultaneously (which they are) - so no problems there. but as the function StopStart changes the boolean fire to true/false I want that to cause my NormalFire function to change what it is doing - nothing when I haven't clicked hash yet and something if I've clicked hash once but if I then click hash while its running it will finish whats its running then do nothing waiting for hash to be clicked again.

Sorry, my question wasn't clear take this code as a simplification of my core question.

##imports
import time
import keyboard #pip install keyboard - could use pynput listener instead.
from threading import Thread

##variable assigning
hshtag = int(0)
done = False
fire = False


def x():
    while not done:
        fire = True
        return fire

def y(fire):
    while not done:
        if fire:
            print('ok')                   
        else:
            pass

t1 = Thread(target = x)
t2 = Thread(target = y(fire))
t1.start()
t2.start()

Currently, the above code outputs nothing even though I've set 'fire = true' in function x and returned it how would I edit this code so that when boolean fire changes to true the function y starts printing ok?

Editing like Nair suggested also returns nothing and after 15 second the program stops running edited code:

##imports
import time
import keyboard #pip install keyboard - could use pynput listener instead.
from threading import Thread

##variable assigning
hshtag = int(0)
done = False
fire = False


def StopStart():
    while not done:
        fire = True
        return fire

def NormalFire():
    while not done:
        if fire:
            print('ok')                   
        else:
            pass

t1 = Thread(target = StopStart)
t2 = Thread(target = NormalFire)
t1.start()
t2.start()

Answer 1

I'm unable to comment so I apologize in advanced. I'm having trouble understanding your question above, but I reworked your code - fix/add whatever you need and get back to me!

import time
import keyboard #pip install keyboard - could use pynput listener instead.
from threading import Thread

hshtag = int(0)
done = False
fire = False


def StopStart():
    while not done:
        # global fire - You're setting StopStart up for a param that needs passed, that also is named another variable
        # So it will just over write it (Also, no arg is passed for StopStart(fire))
        if keyboard.is_pressed('#'):
            hshtag = hshtag + 1
            if hshtag % 2 == 0 : fire = False
            else : fire = true
        return fire


def NormalFire():
    while not done:
        #global fire   - Don't need to global it, you would've had to global done if that was the case
        if fire: # don't need == true, just need if fire (if true)
            print("x")       

t1 = Thread(target=StopStart)
t2 = Thread(target=NormalFire)
t1.start()
t2.start()

Answer 2

Not sure that this is exactly what you're asking for. I would maybe listen for keyboard events outside of either thread. Instead, just bind keyboard events to a callback which set a threading.Event object. Sorry for the weird and slightly morbid example:

from pynput import keyboard
from threading import Thread, Event

plate_dropped = Event()

def on_press(key):
    if key is keyboard.Key.enter:
        plate_dropped.set()

listener = keyboard.Listener(on_press=on_press)

def poll_plate_status():
    from time import sleep
    from random import choice
    messages = [
        "It sure is tempting, eh?",
        "Are you gonna do it?"
    ]
    print("It'd be a shame if someone would drop this plate and scare grandpa!")
    while not plate_dropped.is_set():
        print(choice(messages))  
        sleep(0.5)
    print("The plate has been dropped!")

def poll_grandpa_status():
    from time import sleep
    from random import choice
    messages = [
        "*zzzZZZzzz*",
        "*Snoooreee*"
    ]
    print("Grandpa is sound asleep.")
    while not plate_dropped.is_set():
        print(choice(messages))
        sleep(0.5)
    print("HUH!?")


plate_thread = Thread(target=poll_plate_status, daemon=True)
grandpa_thread = Thread(target=poll_grandpa_status, daemon=True)

plate_thread.start()

grandpa_thread.start()

listener.start()

Answer 3

##imports
import time
import keyboard #pip install keyboard - could use pynput listener instead.
from threading import Thread

##variable assigning
hshtag = int(0)
done = False
fire = False


def StopStart(self, interval=1):
    hshtag = 0
    self.interval = interval
    while not done:
        if keyboard.is_pressed('#'):
            hshtag = hshtag + 1
            if hshtag % 2 ==0:
                fire = False
            else:
                fire = True

def NormalFire():
    while not done:
        print('NormalFire Runs')
        time.sleep(1)
        if fire:
            print('*fires*')                   
        else:
            print('*does nothing*')

#t1 = Thread(target = StopStart, daemon=True)
t2 = Thread(target = NormalFire, daemon=True)
#t1.start()
t2.start()
while not done:
    #time.sleep()
    if keyboard.is_pressed('#'):
        hshtag = hshtag + 1
        time.sleep(0.1)
        if hshtag % 2 ==0:
            fire = False
            print(fire)
        else:
            fire = True
            print(fire)

I realised my problem was my ides of threading (im new to it) this achieves what I wanted thanks for all the help.