[Tutor] Do something on list elements
alan.gauld at yahoo.co.uk
Fri Jul 27 18:06:55 EDT 2018
On 27/07/18 13:56, Valerio Pachera wrote:
> l = ['unoX', 'dueX']
> c = 0
> for n in l:
> l[c] = l[c].replace('X','')
> c = c + 1
> print (l)
> it works but I wonder if there's a better way to achieve the same.
Yes, a much better way.
for index, s in l:
l[index] = s.replace('X','')
But better still is a list comprehension:
l = [s.replace('X','') for s in l)
In Python you very rarely need to resort to using indexes
to process the members of a collection. And even more rarely
do you need to manually increment the index.
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