[Tutor] sub-modules and python3

[john]

Hi folks,

In the past I used a simple "import filename" for sub-modules in python 
2.  With python 3 I have run into errors reported (file not found) using 
python 2 import statements.  But I'm not asking how to correct the 
import as I am able to change the way I write the import as a work 
around - but I'm importing all the files at once.  What I want to know 
is what is the best practice for my situation.

Is there a simple way using python 3  to emulate python 2 imports?

Is there a standard python 3 import tool for sub-modules (files)?

Is it acceptable to add/change the os path to allow my app to find the 
modules/files?

Any help or thoughts on the matter is welcome.


Johnf