Question

Is there anyway to write an exception catch code that’s compatible from python 2.4 to python 3?

Like this code:

# only works in python 2.4 to 2.7
try:
    pass
except Exception,e:
   print(e)

# only works in python 2.6 to 3.3
try:
    pass
except Exception as e:
    print(e)

Answer 1

Trying to write code that works in both Python 2 and Python 3 is ultimately rather futile, because of the sheer number of differences between them. Indeed, a lot of projects are now maintained in separate Python 2 and Python 3 versions as a result.

That said, if you’re hell-bent on doing this in a super-portable way…

import sys
try:
    ...
except Exception:
    t, e = sys.exc_info()[:2]
    print(e)