How to use an iterator?

[fl]

Hi,


I read the online tutorial on iterator:

https://docs.python.org/2/library/itertools.html

I have no idea on how to use this one:

itertools.count(start=0, step=1)

BTW, I am using Python 2.7.9 on Windows 7.



I even input the following:

def count(start=0, step=1):
    # count(10) --> 10 11 12 13 14 ...
    # count(2.5, 0.5) -> 2.5 3.0 3.5 ...
    n = start
    while True:
        yield n
        n += step


>>> xc=count(10)
>>> xc
<generator object count at 0x02BA9AD0>


How to use this generator? 


Thanks,