I'm trying to use importlib.import_module in Python 2.7.2 and run into the strange error.
Consider the following dir structure:
a | + - __init__.py - b | + - __init__.py - c.py
a/b/__init__.py has the following code:
import importlib mod = importlib.import_module("c") (In real code "c"has a name.)
Trying to import a.b, yields the following error:
>>> import a.b Traceback (most recent call last): File "", line 1, in File "a/b/__init__.py", line 3, in mod = importlib.import_module("c") File "/opt/Python-2.7.2/lib/python2.7/importlib/__init__.py", line 37, in import_module __import__(name) ImportError: No module named c What am I missing?
Thanks!
3 Answers
For relative imports you have to:
- a) use relative name
b) provide anchor explicitly
importlib.import_module('.c', 'a.b')
Of course, you could also just do absolute import instead:
importlib.import_module('a.b.c') I think it's better to use importlib.import_module('.c', __name__) since you don't need to know about a and b.
I'm also wondering that, if you have to use importlib.import_module('a.b.c'), why not just use import a.b.c?
And don't forget to create a __init__.py with each folder/subfolder (even if they are empty)
