How Can I Determine and Ensure the Correct Python Version for My Script?

Determining Python Version Executing a Script

To determine the version of the Python interpreter running a script, we have several options:

sys.version String

The sys module provides the sys.version string, which contains information about the Python version:

import sys
print(sys.version)

sys.version_info

For more detailed information, we can use sys.version_info:

import sys
print(sys.version_info)

This returns a tuple containing major, minor, micro, releaselevel, and serial number information.

sys.hexversion

To obtain a hexadecimal representation of the version number, use sys.hexversion:

import sys
print(sys.hexversion)

Ensuring Minimum Python Version

To require a minimum Python version for a script, add the following to your code:

import sys
assert sys.version_info >= (2, 5)

This compares major and minor version information, and will raise an AssertionError if the Python version is not met.

Note:

It's generally recommended to check if specific features are available before relying on them, as they may change between Python releases.

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