Dan Bishop wrote:
>>> lines[:] = [line.rstrip('\n') for line in lines]
>> What is the point of the [:] after lines ? How different is it with or
>> without it ?
>
> It causes the result to be stored in the existing list.
>
If we do:
lines = [line.rstrip('\n') for line in lines]
lines is now a new list, the old list as no reference to it, and will be
discarded by the gc, right ? So we're not really saving any space here ?
If we do:
lines[:] = [line.rstrip('\n') for line in lines]
We reuse an existing list, therefore we are saving the time it takes to
create a new list ? So this is a performance issue ?
Thanks.
Yves.
http://www.SollerS.ca
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