4.2.9

Bug fixes

• ReadWriteLock, SoftReadWriteLock and their async wrappers now raise TypeError for a blocking that is not a bool, in the constructor and on acquire, as FileLock already does. Before, blocking=0 waited out the full timeout on a contended ReadWriteLock while blocking=False failed at once, and a truthy value such as "false" turned a single attempt into a blocking wait (#908) by @abhishekcpp007 and @gaborbernat.

New Contributors

• @abhishekcpp007 made their first contribution in #908

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