python - Import separate module from relative location in __init__.py -

i know similar question has been answered ad nauseam in these pages, i've read answers , cannot find solution makes nuanced application work. long , short:

i expose external module (that exists in relative path, , cannot update path variable) working module. in each case, recognize import module using sys.path.append()/import. however, import module in __init__.py , expose module there (so have adjust path once, theoretically). have read indicates once have exposed module via import in __init__.py, should able access via call my_module.imported_module. however, not seem work. basic idea share set of functions across multiple modules should independent. example below:

(base module):

__init__.py: import sys sys.path.append('../') # know not ideal, simplicity import core  myfile: import base print dir(core) 

nameerror: name 'core' not defined

alternatively:

myfile: import base print dir(base.core) 

attributeerror: 'module' object has no attribute 'core'

and last:

myfile: import base.core print dir(base.core) 

importerror: no module named core

**last, last:

and last:

myfile: import core print dir(core) 

importerror: no module named core

any ideas?

you don't have choice here, if it's relative path in directory outside of main module, you're going have manipulate path. should change sys.path manipulation work __file__ instead aren't bound current working directly, i.e.:

import os import sys sys.path.append(os.path.dirname(os.path.dirname(__file__)) 

however, if other package shares package file use relative import:

parent/     __init__.py     core.py     base/         __init__.py         myfile.py 

you can path manipulation in .pythonrc or ipython settings.