I am new to python. I have a few questions coming from an armature!

[Jussi Piitulainen]

Lawrence D’Oliveiro writes:

> On Tuesday, August 16, 2016 at 6:53:24 PM UTC+12, Jussi Piitulainen wrote:
>> Lawrence D’Oliveiro writes:
>> 
>>> Why could this difference be important?
>> 
>> Different comprehensions (pun!) and performance characteristics.
>
> A potential difference in memory usage. When could this be important?
> Consider a situation where the iterable being mapped is returning
> records from a database query. If it were a million records, you might
> not want them all in memory at the same time.

That's what I meant by different performance characteristics, and I
agree that it's an important difference.