flufl_lock_nfs_safe_file_lock_context_manager.py

1import datetime
2from flufl.lock import Lock
3
4# Create a lock object. The file does not need to exist, but the
5# directory it's in must.
6my_lock = Lock('/tmp/my-lock-file')
7
8# Use the lock as a context manager to ensure it is acquired and released.
9with my_lock:
10    # Inside the block, the lock is held.
11    print(f'Lock acquired at {datetime.datetime.now()}')
12    # Perform some exclusive work here.
13    pass
14
15# Outside the block, the lock is released.
16print(f'Lock released at {datetime.datetime.now()}')