Module 'matplotlib' Has No Attribute 'colors'

I am running an Anaconda installation of Python3 64bit on Windows. I have no idea how to put those words in a proper sentence, but I hope it gives enough information. I am taking a

Solution 1:

The notebook needs to be restarted for the new installations to take effect.

Solution 2:

You just need to upgrade matplotlib.

pip3 install -U matplotlib