Hi,
After reading couple of docs and articles, I have implemented a simple
test package with nested modules.
When running "main.py", everything is working fine. Some of my sub-
modules has some small test routines for debug purpose.
It's because I am using relative package imports at the top, I am not
able to run these sub modules individually.
For example, this works when running from main.py
Here is example structure
main.py
__init__.py
core/
__init__.py
folder1
__init__.py
f1a.py
f1b.py
folder2
__init__.py
f2a.py
f2b.py
in folder2/f2b.py, I am importing
from core.folder1 import f1a
print f1a.myvar
Now I can't execute 'f2b.py' individually. It's giving an error:
ImportError: No module named core.folder2
Is this mean when you have created a package where modules are using
relative imports, they can't execute individually?
Another solution that I have discovered is using sys.path. Check this:
import sys
import os
sys.path.append(os.path.abspath("../../"))
from core.folder1 import f1a
print f1a.myvar
This works fine and easier too. I can execute modules individually as
well as package is also working. Are there any disadvantages when
using above technique? Couple of articles suggests that this is a bad
practice and should not be used.
Need some clarifications.
Thanks
Prashant
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