How can I work on VIM for python code such as cscope for C code?

[Evan]

Hi, guys ~~

How can i work on VIM for python code?  I use cscope plugin on VIM for
C code before, it helps me to  different function and search C
variable where it is defined.

I'm now starting to learn python, and I'd like to know how works on
VIM.

I saw that the VIM is support python such as syntax highlighting,
autocmd,etc. but I really want to know if it can work with TAG.

Do I need to downlaod other software/plugin?

Thanks,