Django Rest Framework -- no module named rest_framework
When using a virtual environment like virtualenvwithout having django-rest-framework installed globally you might as well have the error. 
The solution would be: 

activate the environment first with {{your environment name}}/bin/activate for Linux or {{your environment name}}/Scripts/activate for Windows
and then run the command again.
I've installed django rest framework using pip install djangorestframework yet I still get this error when I run "python3 manage.py sycndb":

ImportError: No module named 'rest_framework'

I'm using python3, is this my issue?