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How to lock a file in Python?

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Sometimes, we want to lock a file in Python.

In this article, we’ll look at how to lock a file in Python.

How to lock a file in Python?

To lock a file in Python, we can use the filelock library.

To install it, we run

pip install filelock

Then we use it by writing

from filelock import FileLock

with FileLock("myfile.txt"):
    # ...
    print("Lock acquired.")

to create FileLock object with the path to lock the file at the path that we passed into FileLock.

And then we run the code we want on the file with the file locked.

Then the file will be closed when everything is run since we used with when we lock the file.

Conclusion

To lock a file in Python, we can use the filelock library.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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