/ Useful

Python unbuffered

I came across a new-to-me Python thing today that was astonishingly useful, so thought I'd document it.

If you need to simply and globally turn off buffering for a Python script there are two options.

First, you can add the -u command line option. This is not always an option, especially if you are running Python in a script using #!/usr/bin/env python.

Second, and far more useful for me, is you can set the PYTHONUNBUFFERED environment variable to any non-zero value and it has the same effect.

Reference here for this and many other useful environment variables for Python 2.x, and you can probably guess the Python 3.x URL.

Bryan Fullerton

Bryan Fullerton

Just a middle-aged dude doing his best to survive. Geeky Internet things from remote professionally.

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