Synchronization Primitives — Semaphore
A Semaphore object. Not thread-safe. A semaphore manages an internal counter which is decremented by each acquire call and incremented by each release call. The counter can never go below zero; when acquire finds that it is zero, it blocks, waiting until some task calls release. The optional value a
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A Semaphore object. Not thread-safe.
A semaphore manages an internal counter which is decremented by each acquire call and incremented by each release call. The counter can never go below zero; when acquire finds that it is zero, it blocks, waiting until some task calls release.
The optional value argument gives the initial value for the internal counter (1 by default). If the given value is less than 0 a ValueError is raised.
The preferred way to use a Semaphore is an async with statement
Attribution: Adapted from Python Documentation under PSF-2.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, removed long code blocks, and shortened it for retrieval. Verify version-sensitive details at the source.
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Python Documentation — Doc/library/asyncio-sync.rst :: Semaphore ↗Revision 948fd7e5c084 · PSF-2.0