check for a certain Python version

[Ulrich Eckhardt]

Hi!

I'd like to give my users a meaningful error message when they are using
obsolete Python versions. Is there some kind of best practice or recipe
for that? Specifically, the case is a bunch of unittests that use
features new to Python 2.7.

Thank you!

Uli

 

[Roy Smith]

Hi!

I'd like to give my users a meaningful error message when they are using
obsolete Python versions. Is there some kind of best practice or recipe
for that? Specifically, the case is a bunch of unittests that use
features new to Python 2.7.

(2, 6, 1, 'final', 0)


major, minor, _, _, _ = sys.version_info
self.assertGreaterEqual(minor, 7, "You, dude, fix your python")

 

[Steven D'Aprano]

Hi!

I'd like to give my users a meaningful error message when they are using
obsolete Python versions. Is there some kind of best practice or recipe
for that? Specifically, the case is a bunch of unittests that use
features new to Python 2.7.

if sys.version < "2.7": ...


Or test for features and either provide your own, or disable
functionality not available:

class MyTest:
try:
@unittest.FancyFeature
def testFancy(self):
self.assertFancy(self, ...)
except AttributeError:
pass