locks
POSIX file system locking using flock.
Getting started
Install this package with
pip install locks
Usage
The simplest usage is to block indefinitely until the lock is acquired
from locks import Mutex
with Mutex('/tmp/file.lock'):
# do exclusive stuff here
Alternatively, block until a timeout is reached
from locks import Mutex
try:
with Mutex('/tmp/file.lock', timeout=0.5):
# do exclusive stuff here
except BlockingIOError:
# handle the failure to acquire the lock
Finally, a common paradigm is to attempt to acquire the lock without blocking,
do something, and then block indefinitely. Here callback will be called once
if we cannot immediately acquire the lock, and then we will block indefinitely.
def callback():
print("Blocking: waiting for file lock on '/tmp/file.lock'")
with Mutex('/tmp/file.lock', callback=callback):
# do exclusive stuff here
If both callback and timeout are used then we will attempt to
acquire the lock until the timeout is reached, and then we will block
indefinitely.
License
This project is licensed under the MIT License. See the LICENSE file.
1 maintainer
Metadata
1 maintainer
Release files for locks 0.1.1
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| locks-0.1.1.tar.gz | 3.4 kB | Without provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| locks-0.1.1-py2.py3-none-any.whl | Python 3, Python 2 | none | any | Details |
Total release size: 7.3 kB
Release files / locks-0.1.1.tar.gz
| Download URL | locks-0.1.1.tar.gz |
|---|---|
| Size | 3.4 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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BLAKE2b-256 checksum How to use checksums |
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| Uploaded via |
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|
Release files / locks-0.1.1-py2.py3-none-any.whl
| Download URL | locks-0.1.1-py2.py3-none-any.whl |
|---|---|
| Size | 3.9 kB |
| Tags | Python 2 Python 3 |
|
SHA-256 checksum How to use checksums |
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No |
| Uploaded via |
twine/2.0.0 pkginfo/1.5.0.1 requests/2.22.0 setuptools/41.6.0 requests-toolbelt/0.9.1 tqdm/4.38.0 CPython/3.7.3
|
Security for locks 0.1.1
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