A function to load kv files automatically.

utils.py

def load_kv():
    '''This magical function lookup module name, and load the kv file
    with the same name (in the same directory)
    '''
    filename = inspect.currentframe().f_back.f_code.co_filename
    f = extsep.join((splitext(filename)[0], 'kv'))
    if exists(f) and f not in Builder.files:
        Builder.load_file(f)

example usage.

testclass.py

from utils import load_kv
from kivy.uix.widget import Widget

class Test(Widget):
    pass
load_kv()

testclass.kv

<Test>:
    canvas:
        Rectangle:
            pos: self.pos
            size: self.size

Your gist looks like an answer to something I couldn't find in the official Kivy documentation but I couldn't have it run. I get the error

NameError: name 'inspect' is not defined

Thanks for it though.

inspect is a python module, you have to import it.

Interesting

Nice! I am using

import pathlib
Builder.load_file(f'{pathlib.Path(__file__).parent.absolute()}{pathlib.os.sep}{pathlib.Path(__file__).stem}.kv')

in my python files. Works for python 3.7+ AFAIK.