#1559 "Go to definition" doesn't work with "from X import *" declarations

open
nobody
None
5
2014-07-31
2013-04-07
No

I think I have finally found a hint on why "go to definition" works for some people and not for others.

It has to do with "star" imports.

Suppose you have module M1 and module M2 which has symbol S2

m1/
m1/__init__.py
m1/m2/__init__.py      
   from s2 import *
m1/m2/s2.py
   class S2(): pass

Then we can import it in two ways:

1) from m1.m2.s2 import S2
2) from m1.m2 import S2

They both work, but (2) doesn't make "go to definition" work properly.

One fix is to use an explicit import instead of the "star":

m1/
m1/__init__.py
m1/m2/__init__.py      
   from s2 import S2   # <~------ 
m1/m2/s2.py
   class S2(): pass

If this is done then both (1) and (2) make "go to definition" work properly.

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