I have installed Python 3.7 on my system and I am running one simple python file in which imports a .pyd file. When running the script I got error like:

Traceback (most recent call last):
        File "demoTemp\run.py", line 1, in 
        from pyddemo import fun
        ModuleNotFoundError: No module named 'pyddemo'

pyddemo is pyd file.
Is there any dependency for pyd file?
Thanks
I found solution of my problem its just mismatch of python version in which I have created pyd and python version in which I am using it.
PYD file not found