[Python] Read python output from another python script

I have two python files, one contains code which generates an output and the other needs to read it. The generation code is:

b=5
return b


The reading code is:

import os
c= os.system("test.py")
print (c)


When I run this, the output is 1. I don't understand why this isn't 5, any advise on how to fix this please?

Continue reading...