Simple question, how do you tell how many items in a list?

WDC ki4yjl at gmail.com
Fri Jul 11 21:25:45 CEST 2008


On Jul 11, 2:53 pm, Terry Reedy <tjre... at udel.edu> wrote:
> Alex Bryan wrote:
> > I am just wondering how you get an integer value for how many items
> > there are in a list, preferably w/o a for loop.
>
> Read the library reference sections on built-in functions and classes.

Quite simple.

If I understand you correctly, you have a list like this:

>>> list = ['a', 'b', 'c', 'd']

As you can see, the list has 4 entries.

The len() function also says that we have 4 entries.

>>> len(list)
4

Now, if we wanted a particular entry, we would do this:

>>> list[0]
'a'

(Remember, when calling something in a list we count zero.)

>>> list[3]
'd'

Hope this helped.

David



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