website/content/blog/detectpythonversion.md

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---
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date: 2021-03-15 22:09:38
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draft: false
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medium_enabled: true
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medium_post_id: f742be560b7f
tags:
- Python
title: Detect Python Version
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---
I was working on a distribution recently where `python` was mapped to `python2`. It mixed me up for a bit since I was writing a script for `python3` but it ran partially under `python2`. To lower confusion in the future, I think it's a great idea to check the python version and exit if it isn't the version you expect.
```python
from sys import version_info, exit
if version_info.major != 3:
print("This script only supports Python 3")
print("Curent version: " + \
str(version_info.major) + "." + \
str(version_info.minor) + "." + \
str(version_info.micro)
)
print("Exiting...")
exit(1)
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```