Python importing a module from a parallel directory
How would I organize my python imports so that I can have a directory like this.
project
| \
| __init__.py
|
src
| \
| __init__.py
| classes.py
|
test
\
__init__.py
tests.py
And then inside /project/test/tests.py be able to import classes.py
I've got code looking like this in tests.py
from .. src.classes import(
scheduler
db
)
And am getting errors of
SystemError: Parent module '' not loaded, cannot perform relative import
Anyone know what to do?
Answer
Python adds the folder containing the script you launch to the PYTHONPATH, so if you run
python test/tests.py
Only the folder test is added to the path (not the base dir that you're executing the command in).
Instead run your tests like so:
python -m test.tests
This will add the base dir to the python path, and then classes will be accessible via a non-relative import:
from src.classes import etc
If you really want to use the relative import style, then your 3 dirs need to be added to a package directory
package
* __init__.py
* project
* src
* test
And you execute it from above the package dir with
python -m package.test.tests
See also: