What is threading Lock in Python⚡️

Описание: Code:
"""
Threading.Lock: Prevents multiple threads from modifying
shared data at the same time (avoiding race conditions).
"""
import threading, time
Shared resource
counter = 0
lock = threading.Lock()

def increment():
"""Increment the shared counter safely using a lock."""
global counter # Same resource variable for all threads
for _ in range(4):
time.sleep(0.1)
with lock: # Auto acquires and releases the lock
counter += 1
name = threading.current_thread().name
print(f"{name} incremented cnt = {counter}")
Create threads
t1 = threading.Thread(target=increment, name="Thread-1")
t2 = threading.Thread(target=increment, name="Thread-2")
Start threads
t1.start()
t2.start()
Wait until both finish
t1.join()
t2.join()
print("All threads finished. Final Counter =", counter)


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