fasteners_interprocess_file_lock_context_manager_quickstart.py

1import fasteners
2import os
3
4# Define the path for the lock file
5lock_path = 'my_resource.lock'
6
7# Create the InterProcessLock
8lock = fasteners.InterProcessLock(lock_path)
9
10# Use the lock as a context manager to ensure it is released automatically
11print("Attempting to acquire lock...")
12with lock:
13    print("Lock acquired! Performing critical section work...")
14    # Your thread-safe/process-safe code goes here
15    # Example: writing to a shared file
16    with open('shared_file.txt', 'a') as f:
17        f.write('Data written by a protected process\n')
18
19print("Lock released.")
20
21# Clean up: remove the lock file if it's no longer needed
22if os.path.exists(lock_path):
23    os.remove(lock_path)