How to use cmp() function to compare 2 files?

[Marc 'BlackJack' Rintsch]

In <1172553141.665287.65280 at 8g2000cwh.googlegroups.com>, yinglcs at gmail.com
wrote:

>   File "./scripts/regressionTest.py", line 30, in getSnapShot
>     if (difflib.context_diff(f1.readlines(), f2.readlines()).len() ==
> 0):
>          # no difference
>     else:
>          # files are different
> AttributeError: 'generator' object has no attribute 'len'
> 
> Can you please help?

The function returns a generator/iterator over the differences which has
no `len()` method.  If you just want to know if two files are equal or not
use `filecmp.cmp()`.  Read the docs about the `shallow` argument of that
function.

Ciao,
	Marc 'BlackJack' Rintsch