How do I pass in variables into python import path -

i'm trying find out how can parameterize package path not figure out.

here example:

if following, works, a, b directory names, __init__.py in them, last directory b contains c.py file, contains 'd' class name a.b.c import d (python takes without issue)

i'm trying make directory 'b' variable can pass in dynamically.

something like: b = 'y' <-- name figured out somehow dynamically a.b.c import d

the above identifier b string, python won't take it, looks might need: eval(), lambda, getattr() etc convert string 'y' module identifier, can't make working.

could please me out, lot in advance!

bruce

wim@wim-imac:/tmp$ find  a/__init__.py a/b a/b/__init__.py a/b/c a/b/c/__init__.py a/y a/y/__init__.py a/y/c a/y/c/__init__.py wim@wim-imac:/tmp$ cat a/b/c/__init__.py  d = 'd in b' wim@wim-imac:/tmp$ cat a/y/c/__init__.py  d = 'd in y' 

now importlib has need:

wim@wim-imac:/tmp$ python -i -c "" >>> importlib import import_module >>> mod_a_b_c = import_module('a.b.c') >>> mod_a_b_c.d 'd in b' >>> mod_a_y_c = import_module('a.y.c') >>> mod_a_y_c.d 'd in y' 

these convenience wrappers. if want have "from" style imports, going have use __import__ magic method directly , use fromlist kwarg. it's bit of drag syntax, still possible:

>>> d = __import__('a.b.c', fromlist=['d']).d >>> d 'd in b' >>> d = __import__('a.y.c', fromlist=['d']).d >>> d 'd in y'