Why some functions of itertools isn't accessible when import full module

Question

I want to use count function from itertools module. When I try to import full module

import itertools

The count function isn't accessible. I can use it only when I import it like this

from itertools import count

how I can import full module functions without importing them one by one

Are you trying to call `count`, or `itertools.count` in the first case? When using `import X` syntax, you always have to qualify names from the module with `X.`. You could avoid namespace qualification with `from itertools import *`, but [that's generally frowned on](https://www.python.org/dev/peps/pep-0008/#imports) (namespaces are a good thing for avoiding accidental name collisions, and using `from x import *` prevents static analyzers from doing their job as well). — ShadowRanger, Jul 05 '19 at 12:48
I call count without mentioning itertools. Now I understood what I was doing wrong . Thank you — Naglyj.Spamer, Jul 05 '19 at 12:50

M. Weeker · Accepted Answer · 2019-07-05T13:11:21.863

0

In case you only need the count function it is much more economical to use

from itertools import count

If you need the whole module just import it like this:

from itertools import *  # to be avoided due to potential name collusions

print(count(10))

or import everything using the module's full name:

import itertools

print(itertools.count(10))

or use a shortcut to itertools:

import itertools as it

print(it.count(10))

edited Jul 05 '19 at 13:11

answered Jul 05 '19 at 12:45

M. Weeker

Thanks, but why when I import module via import itertools it is not importing all functionality? – Naglyj.Spamer Jul 05 '19 at 12:47
If you only type `import itertools` the module is imported using its module name and its funcionality is accessible via `itertools.count()` – M. Weeker Jul 05 '19 at 12:55
I edited my answer to show all import options. – M. Weeker Jul 05 '19 at 13:01

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