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pythonflush

Python's print function that flushes the buffer when it's called?

I have the following code to flushing out the output buffer.

print('return 1')
sys.stdout.flush()

Can I set up the print function so that it automatically flushes the buffer when it's called?

Solution

  • You can start python in unbuffered mode using the -u flag, e.g.

    python -u script.py

    or

    #!/usr/bin/env python -u

    as "shebang" header for your script.