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# Fasteners
Python standard library provides an Exclusive Lock for threads and Exclusive Lock for processes
spawned by `multiprocessing` module. `fasteners` provides additional three synchronization primitives:
* Exclusive Lock for independent processes
* Readers Writer Lock for independent processes
* Readers Writer Lock for threads
## Installation
```
pip install fasteners
```
## Usage
See [User Guide](guide/index.md) for usage tips and examples and [Reference](api/inter_process.md) for detailed API.
## Similar libraries
[`portarlocker`](https://github.com/WoLpH/portalocker): readers writer lock and semaphore for
independent processes, exclusive lock based on redis.
[`py-filelock`](https://github.com/tox-dev/py-filelock): exclusive lock for independent processes.
[`pyReaderWriterLock`](https://github.com/elarivie/pyReaderWriterLock): inter-thread readers writer
locks, optionally downgradable, with various priorities (reader, writer, fair).
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