I've written some scripts, which run either only with Version 2.x or some only with Version 3.x of Python.
How can I detect inside the script, if it's started with fitting Python Version?
Is there a command like:
major, minor = getPythonVersion()
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Possible duplicate of Detect Python version at runtimesmci– smci2018-02-05 00:42:43 +00:00Commented Feb 5, 2018 at 0:42
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2 Answers
sys.version_info provides the version of the used Python interpreter.
Python 2
>>> import sys
>>> sys.version_info
sys.version_info(major=2, minor=7, micro=6, releaselevel='final', serial=0)
>>> sys.version_info[0]
2
Python 3
>>> import sys
>>> sys.version_info
sys.version_info(major=3, minor=7, micro=10, releaselevel='final', serial=0)
>>> sys.version_info[0]
3
For details see the documentation.
1 Comment
Klaus D.
@ewerybody I rejected your edit since using the namedtupel attributes does not work in all versions.
You can use the six library (https://pythonhosted.org/six/) to make it easier to write code that works on both versions.
(It includes two booleans six.PY2 and six.PY3 which indicate whether the code is running in Python 2 or Python 3)
Also in Python 2.6 and 2.7, you can use
from __future__ import (print_function, unicode_literals, division)
__metaclass__ = type
to enable some of the Python 3 behaviour in a way that works on both 2 and 3.
1 Comment
augurar
This is useful supplementary information but doesn't really answer the question.