ImportError: Cannot load backend 'TkAgg' which requires the 'tk' interactive framework, as 'headless' is currently running

Question

When I use google colaboratory, I face this problem, I have searched it on stackoverflow, but few answer, could any guy help me to figure it out? THX!

I have tried to reinstall matplotlib in several ways, and install tk-dev, all of them don't work.

import matplotlib
import glob


**matplotlib.use('TKAgg')**


import matplotlib.image as mpimg

import matplotlib.pyplot as plt
import matplotlib.patches as patches
import matplotlib.ticker as ticker

There comes out an ImportError like the Title :"ImportError: Cannot load backend 'TkAgg' which requires the 'tk' interactive framework, as 'headless' is currently running"

Answer 1

What solved the problem for me was to restart my kernel, import the following first:

import matplotlib
matplotlib.use('TKAgg')

Then,

import matplotlib.pyplot as plt

You probably imported matplotlib with another framework before you tried to change to TKAgg. Restart your kernel.