Python #ifdef

[Carlos Nepomuceno]

________________________________
> Date: Tue, 28 May 2013 18:25:59 -0400 
> Subject: Re: Python #ifdef 
> From: joel.goldstick at gmail.com 
> To: breamoreboy at yahoo.co.uk 
> CC: python-list at python.org 
[...]
>  
> my original response was from cell phone.  I just answered that you  
> can't do ifdefs, implying that there is no preprocessor in python.  I  
> learned a lot of things I didn't know reading the thread, but I wonder  
> if it is a good idea in general to try to write code like this.  --  
> combined 2.x/3.x codebase can be a bear to maintain.  I wouldn't do it  
> unless there was some imposing reason that I must.  Its not just  
> print() -- that isn't bad, but changes in module names (urllib),  
> arithmetic, and unicode especially make this idea in general, very  
> tricky.  Pity the next developer who needs to try to maintain it. 
>  
> So, maybe you CAN do it, but SHOULD you want to do it? 
>  
> --  
> Joel Goldstick 
> http://joelgoldstick.com 


Thanks Joel! In this case I think it does because I would like to have the same short benchmarking script to be runnable by Python 2 and Python 3.

The only piece of code that doesn't run on Python 2 is a to_bytes() single call. So it's not a huge maintenance load. ;)

I didn't try to write 'portable' code to Python 3 yet. What's the catch?