In this tutorial, we will introduce python -u command for python beginners.
What is python -u command?
You can run python -h to understand -u argument in python.
Run this command, we can get this result.
-u : force the binary I/O layers of stdout and stderr to be unbuffered; stdin is always buffered; text I/O layer will be line-buffered; also PYTHONUNBUFFERED=x
It means that python will display information on screen without buffering string.
In python, if we use print() function to display text, stdout will save the text in a buffer, then display it on the screen. However, if you use python -u, print() will make stdout (our screen) display string text directly.