how to lock writing to a variable thread python
from threading import Lock, Thread
lock = Lock()
g = 0
lock.acquire()
g += 1
lock.release()how to lock writing to a variable thread python
from threading import Lock, Thread
lock = Lock()
g = 0
lock.acquire()
g += 1
lock.release()python daemon thread
import threading
import time
def func_1():
while True:
print(f"[{threading.current_thread().name}] Printing this message every 2 seconds")
time.sleep(2)
# initiate the thread with daemon set to True
daemon_thread = threading.Thread(target=func_1, name="daemon-thread", daemon=True)
# or
# daemon_thread.daemon = True
# or
# daemon_thread.setDaemon(True)
daemon_thread.start()
# sleep for 10 seconds and end the main thread
time.sleep(4)
# the main thread endsthreading python
import threading
import time
def thread_function(name):
print(f"Thread {name}: starting")
time.sleep(2)
print(f"Thread {name}: finishing")
my_thread = threading.Thread(target=thread_function, args=(1,))
my_thread.start()
time.sleep(1)
my_second_thread = threading.Thread(target=thread_function, args=(2,))
my_second_thread.start()
my_second_thread.join() # Wait until thread finishes to exitthreading lock in python
import threading
lock = threading.Lock()
def check_this():
with lock:
"""
acquires lock at the beginning
and releases at the end of this block
"""
a, b = 1, 0
print("locked")
try:
print(a // b)
except Exception as _:
print(_)
print("lock is released")
[threading.Thread(target=also_this).start() for _ in range(2)]Copyright © 2021 Codeinu
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