Victor Hooi wrote: > Hi, > > Hmm, this post on SO seems to suggest that importing from another sibling > directory in a package ins't actually possibly in Python without some ugly > hacks? > > http://stackoverflow.com/questions/6323860/sibling-package-imports > > Did I read the above correctly?
Yes. > Is there another way I can structure my code so that I can run the > sync_em.py and sync_pg.py scripts, and they can pull common functions from > somewhere? The packages you are trying to access in your original post > foo_loading/ > __init__.py > common/ > common_foo.py > em_load/ > __init__.py > config.yaml > sync_em.py > pg_load/ > __init__.py > config.yaml > sync_pg.py aren't actually siblings in the sense of the stackoverflow topic above, they are subpackages of foo_loading, and as you already found out > So from within the sync_em.py script, I'm trying to import a function from foo_loading/common/common_foo.py. > > from ..common.common_foo import setup_foo_logging > > I get the error: > > ValueError: Attempted relative import in non-package > > If I change directories to the parent of "foo_loading", then run > > python -m foo_loading.em_load.sync_em sync_em.py > > it works. However, this seems a bit roundabout, and I suspect I'm not doing things correctly. > > Ideally, I want a user to be able to just run sync_em.py from it's own directory, and have it correctly import the logging/config modules from common_foo.py, and just work. > > What is the correct way to achieve this? you can access them as long as the *parent* directory of foo_loading is in sys.path through PYTHONPATH, or as the working directory, or any other means. However, if you step into the package, e. g. $ cd foo_loading $ python -c 'import common' then from Python's point of view 'common' is a toplevel package rather than the intended 'foo_loading.common', and intra-package imports will break. To preserve your sanity I therefore recommend that you (1) avoid to put package directories into sys.path (1a) avoid to cd into a package (2) put scripts you plan to invoke directly rather than import outside the package. -- https://mail.python.org/mailman/listinfo/python-list
