import - Importing files in Python from __init__.py

Question

Suppose I have the following structure:

app/
  __init__.py
  foo/
    a.py
    b.py
    c.py
    __init__.py

a.py, b.py and c.py share some common imports (logging, os, re, etc). Is it possible to import these three or four common modules from the __init__.py file so I don't have to import them in every one of the files?

Edit: My goal is to avoid having to import 5-6 modules in each file and it's not related to performance reasons.

Answer 1

You can do this using a common file such as include.py, but it goes against recommended practices because it involves a wildcard import. Consider the following files:

app/
    __init__.py
foo/
    a.py
    b.py
    c.py
    include.py <- put the includes here.
    __init__.py

Now, in a.py, etc., do:

from include import *

As stated above, it's not recommended because wildcard-imports are discouraged.