check interpreter version before running script

[rbt]

Peter Otten wrote:
> rbt wrote:
> 
> 
>>Is there a recommended or 'Best Practices' way of checking the version
>>of python before running scripts? I have scripts that use the os.walk()
>>feature (introduced in 2.3) and users running 2.2 who get errors.
>>Instead of telling them, 'Upgrade you Python Install, I'd like to use
>>sys.version or some other way of checking before running.
> 
> 
> I like
> 
> import os
> 
> try:
>     os.walk
> except AttributeError:
>     # implement fallback
> 
> No need to remember in which version the desired feature came to be.
> 
> Peter

Thanks for all the tips. I found this tip from Peter the best for my 
situation.