Python version dilemma

[Aahz Maruch]

In article <mailman.998941722.3618.python-list at python.org>,
Skip Montanaro  <skip at pobox.com> wrote:
>
>    > I have a set of scripts that use 2.1 syntax.  Now, I'd really like
>    > these scripts to, when run by the 1.5 interpreter, gracefully state
>    > that version 2 is required.  However, my code fails during the
>    > compilation stage with the 1.5 interpreter (SyntaxError's and such),
>    > and so never gets the chanced to execute a code portion that might
>    > print a pretty (or at least useful) error message.
>
>What you might want to do is push your version dependent code into separate
>modules.  Suppose your module is named "mod".  In mod.py do this:
>
>    try:
>      from mod21 import *
>    except SyntaxError:
>      from mod15 import *

Eww.  That would mask a real syntax error (say, introduced by a typo).
Use an if statement.
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