I tried to use the matplotlib package via Pycharm IDE on windows 10. when I run this code:
from matplotlib import pyplot
I get the following error:
ImportError: No module named 'tkinter'
I know that in python 2.x it was called Tkinter, but that is not the problem - I just installed a brand new python 3.5.1.
EDIT: in addition, I also tried to import 'tkinter' and 'Tkinter' - neither of these worked (both returned the error message I mentioned).
sudo apt-get install python3-tk
Then,
>> import tkinter # all fine
Edit:
For Windows, I think the problem is you didn't install complete Python package. Since Tkinter should be shipped with Python out of box. See: http://www.tkdocs.com/tutorial/install.html
I suggest install ipython, which provides powerful shell and necessary packages as well.