A simple reasonable lock for AWS dynamodb.
from ddblocker import DDBLock
lock = DDBLock(key="LOCKTHISWAY!", table_name="my-fancy-locks-table", region_name="us-east-2")
with lock:
# do some things
pass
Lock will raise LockFailedError if the lock could not be aquired. By default there is a 30 second TTL on locks. I believe this to be reasonable for use within lambda functions when your timeout is 30 seconds. Set max_live on the lock to extend that assumption. Note that max_live is a value that is checked when attempting to aquire a lock and not set when locks have already been aquired.
The MIT License (MIT)
Copyright (c) 2016 Paul J DeCoursey, Inc.
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