[Tutor] Regular expression

[Steven D'Aprano]

On Tue, Sep 23, 2014 at 11:40:25AM +0200, jarod_v6 at libero.it wrote:
> Hi there!!
> 
> I need to read this file:
> 
> pippo.count :
>  10566 ZXDC
>    2900 ZYG11A
>    7909 ZYG11B
>    3584 ZYX
>    9614 ZZEF1
>   17704 ZZZ3

> How can extract only the number and the work in array? Thanks for any help

There is no need for the nuclear-powered bulldozer of regular 
expressions just to crack this peanut.

with open('pippo.count') as f:
    for line in f:
        num, word = line.split()
        num = int(num)
        print num, word


Or, if you prefer the old-fashioned way:

f = open('pippo.count')
for line in f:
    num, word = line.split()
    num = int(num)
    print num, word
f.close()


but the first way with the with-statement is better.


-- 
Steven