How does Heroku handle Django dependencies?
Heroku only uses the libraries in your requirements.txt file. Whatever version of Django is specified there is what it will install.
I'm starting to work on my first-ever Django/Heroku project – I'm working on a friend's web app that's already partially coded. It's built in Django 1.6. There's no virtualenv, and when I clone it and try to run it in Django 1.8 it crashes and burns. The app itself is currently online and functional, and when I run the app locally in Django 1.6, no issues. How is Heroku handling dependencies like this? Does it install dependencies on its server by reading the requirements.txt?