How to Use gRPC with Protocol buffer with Django

Hey, I am using Django to make an E-commerce website and i want to use gRPC with Protocol Buffer , so, i can serve different client platform to like IOS, Android etc. i want

AttributeError: 'module' object has no attribute 'index'

I read the documentation of Django i followed till page 17 then I have got an error i do exactly the same as the tutorials in docs please help me Unhandled exception in thread started by .wrapper at 0x7fb70bdb3510> Traceback (most recent call last): File "/home/kashif/Desktop/mysite/lib/p