linux vim environment setting

I tried to use the python autocomplete in vim  and setting the environment

in ~/.bashrc,then it works in shell . but not works when i opening gvim from a window.

find it on line and i get some useful information:

 

When you are  launching gvim
from your window manager, which gets


its environment
from a number of places, but not from your bashrc


since your window manager was not run from bash.

Stuff like PATH and other environment
settings that you expect to be


seen by applications launched from your window manager should really


be defined in your ~/.profile instead of in your ~/.bashrc.  Your


~/.profile is read when you log in, whether through X or through a


terminal.  Environment
settings (but not aliases) made there and


exported will be seen by all your processes.  Your ~/.bashrc should


really be used to make only those settings that you expect to use


only from the command line (including aliases and functions) or by


applications launched only from the command line.