No module named PIL in heroku though it is installed
I have been trying to deploy a Django application on Heroku. Some background - I hadn't used virtual environment while building the application but while deploying it, I had to use it. I'm following this tutorial for deployment. https://medium.com/agatha-codes/9-straightforward-steps-for-deploying-your-django-app-with-heroku-82b952652fb4 Now I'm stuck in step-6. After creating a virtual environment I have freezed the dependencies into requirements.txt . But when I open the deployed URL it says ImportError at / No module named PIL though Pillow has been installed, it is there in requirements