How can I goto a function definition imported from another file using jedi-vim?

I regularly use <leader>d to go to a function definition. When this definition is from another file, it brings me to the import line of the file.

How can I use jedi-vim to go to the file that defines the function imported on that line?

It sounds like there is something wrong with your configuration... Double check that your filetype is indeed python. This should work, according to the documentation:

5.2. g:jedi#goto_command

Function: jedi#goto()

Default: <leader>d

Go to definition (or assignment)

This function first tries jedi#goto_definitions, and falls back to jedi#goto_assignments for builtin modules. It produces an error if nothing could be found. NOTE: this implementation is subject to change. Ref: https://github.com/davidhalter/jedi/issues/570

This command tries to find the original definition of the function/class under the cursor. Just like the jedi#goto_assignments() function, it does not work if the definition isn't in a Python source file.

The difference between jedi#goto_assignments() and jedi#goto_definitions() is that the latter performs recursive lookups. Take, for example, the following module structure:

# file1.py:
from file2 import foo

# file2.py:
from file3 import bar as foo

# file3.py
def bar():
    pass

The jedi#goto_assignments() function will take you to the

from file2 import foo

statement in file1.py, while the jedi#goto_definitions() function will take you all the way to the

def bar():

line in file3.py.