Python: Print Version String from Script

By Xah Lee. Date: . Last updated: .

Print version from the command line:

python --version

Print version number from within the script.

import sys

print(sys.version)
# 3.9.1 (tags/v3.9.1:1e5d33e, Dec  7 2020, 17:08:21) [MSC v.1927 64 bit (AMD64)]

# path of the python interpreter
print(sys.executable)
# C:\Python39\python.exe

Printing version from script is a important technique to find out which version your script is running. Because, you might have several version installed, and in terminal, there are aliases, links, path environment variables, various shell init scripts, that effect which Python version will start when you type python in shell.

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