Python: How to import part of a namespace

Question

I have a structure such this works :

import a.b.c
a.b.c.foo()

and this also works :

from a.b import c
c.foo()

but this doesn't work :

from a import b.c
b.c.foo()

nor does :

from a import b
b.c.foo()

How can I do the import so that bcfoo() works?

Answer 1

Just rename it:

from a.b import c as BAR

BAR.foo()

Answer 2

在' b '包中，您需要添加' import c '，以便始终可以将其作为b一部分进行访问。

Answer 3

from a import b
from a.b import c
b.c = c

Answer 4

import a.b.c
from a import b
b.c.foo()

The order of the import statements doesn't matter.