Python: dynamically load library in global path

I have a file somehash-mylib.py that contains, say:

def hello():
    print("hello world")

and I’d like to dynamically import this library globally (like in from mymodule import *) using only its path. Following How can I import a module dynamically given the full path? I can do it locally using:

from pydoc import importfile
module = importfile('somehash-mylib.py')

module.hello()

but I don’t know how load it globally to turn this into:

# somehow (??) load somehash-mylib.py

hello()

Any idea? Ideally I’d like the code to be simple, and make it work across multiple python versions (only the 3.x branch).

Edit As far as I can see, none of the linked answers that justified to close this question actually answer my question: I have as input only the path to the module, and I want to include it globally. Hopefully, the comment solved my issue (thanks!):

from pydoc import importfile
module = importfile('somehash-mylib.py')
locals().update(vars(module)) # make it global

# Both work now
module.hello()
hello()