how to implement a kv file by initializing a class

[Edward Anderson]

I am attempting to divide a large project into individual steps with each step having its own kv file to format that step. The 3 attached files are organized so that MModel.py is the executive program that initializes a class in Directory.py with an attached prbdir,ky file.  Directory.py and prbdir.kv are in a subdirectory of the MModel.py directory. All of these are placed in a single Python package. When I run the Directory.py file, everything executes as intended with a label and title being displayed. When I execute the MModel.py file (Initializing the Directory class) only a blank screen (without label) is displayed. So, my question is how to implement a kv file by initializing a class?

[ElliotG]

You can pull a kv file into a python file a number of ways.
If the kv file has the same name as the app, it will load by default.

You can use Builder.load_file('pdbdir.kv')  to load a kv file explicitly
or use Builder.load_string(kv_string) to load kv.

to use Builder, use

from kivy.lang import Builder

[Edward Anderson]

Hunter: Your description is exactly what I am trying to do.

Eliot: Your suggestion sound like what I need to do to accomplish my objective. I will try it when I get a chance.

Thanks to both of you.

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