import matplotlib failing with No module named _tkinter on heroku

Question

I\'m trying to use matplotlib in my application. I created a virtualenv in python2.7, pip installed matplotlib, and it\'s successfully running on local.

How

Answer 1

This should do the trick

matplotlib.use('Agg')
import matplotlib.pyplot as plt

This will set your Matplotlib backend to use Agg instead of Tk. Just worked for me at least :-)