python import module

python.import.md

Python import

Notation

Python import uses Package(dot notation)

Ways of importing

1. import X, is preferred
2. from X import *
3. from X import a, b, c
4. X = __import__(X)

Package vs Module

Module: Another python source file

Package: A Python package is simply a directory of Python module(s). __init__.py must exist for declaring as package.

Notes:

Relative imports only work for packages, but when you import a.py you are running a module instead.

.
├── driver_pkg_import.py
pkg
├── __init__.py
├── dot_import.py
├── module.py

References

https://docs.python.org/2/tutorial/modules.html http://effbot.org/zone/import-confusion.html http://programmers.stackexchange.com/questions/111871/module-vs-package