[Tutor] more fun and games with padded numbers

[Kent Johnson]

John Fouhy wrote:
> On 12/01/07, Christopher Spears <cspears2002 at yahoo.com> wrote:
>> At first I used strip(), which was a mistake because
>> it removed all the zeroes.
> 
> Are you sure?  If you used .replace('0', '') it would remove all the
> zeros.  But this is what strip is for.
> 
>>>> lst = ['0001.ext', '0230.ext', '0041.ext', '0050.ext']
>>>> [s.lstrip('0') for s in lst]
> ['1.ext', '230.ext', '41.ext', '50.ext']

I just want to highlight that your code uses lstrip(), not strip(). 
lstrip() is perfect for this problem, it removes leading characters 
only, in this case leading 0s.

Kent