Dictionary/Hash question

[Gabriel Genellina]

En Tue, 06 Feb 2007 22:18:07 -0300, Sick Monkey <sickcodemonkey at gmail.com>  
escribió:

> I have never seen this "with open(fname,'r') as finput:"
>
> It is actually throwing an error .  Do I have to import a special  
> library to
> use this?
>
>  File "dictNew.py", line 23
>     with open(fname,'r') as finput:
>             ^
> SyntaxError: invalid syntax

Oh, sorry. You need two things:
- Python 2.5
- include this line at the very beginning of your script: from __future__  
import with_statement

If you're using an earlier version, you can write:

   finput = open(fname,'r')
   try
     ...
   finally
     finput.close()

(Or just omit the try/finally and rely on the garbage collector, but it's  
not the recommended practice, specially when external resources are  
involved, like files).

-- 
Gabriel Genellina