How to access the low digits of a list

Rustom Mody rustompmody at gmail.com
Tue Jun 2 08:35:03 EDT 2015


On Tuesday, June 2, 2015 at 5:53:34 PM UTC+5:30, fl wrote:
> Hi,
> 
> I have a list:
> 
> 
> 
> 
> 
> 
> >>> lines
> ['12', '42', '49', '156', '225', '36', '49', '164', '11181', '3100']
> 
> 
> 
> I want to access the last two digits. That is:
> 
> ['12', '42', '49', '56', '25', '36', '49', '64', '81', '00']
> 
> 
> When I try to use lines[3][0] is '1'
> lines[3][1] is '5'
> lines[3][2] is '6'
> 
> 
> I don't know whether there is a way to know the length of lines[3]. Then, I
> can use a -1 step to get the last two digits. Or, you may have much better 
> ways to do that. Python is really too versatile I feel.

len(lines[3])  ??

You can do this: [Hope I am not doing your homework!]

>>> [(x[-2:] if len(x) > 2 else x)  for x in lines]
['12', '42', '49', '56', '25', '36', '49', '64', '81', '00']
>>> 

For that matter even this works
But I am not sure whats happening or that I like it

>>> [x[-2:]  for x in lines]
['12', '42', '49', '56', '25', '36', '49', '64', '81', '00']
>>> 



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