Python shell in Emacs freezes when using matplotlib

Question

I previously thought that was the issue with IPython, but today I tested again, here is what I did:

1. Run emacs -Q in cmd window
2. Open a .py

Answer 1

one solution is:

(setq python-shell-interpreter "C:\\YourPython3Dist\\python.exe"
      python-shell-interpreter-args "-i C:\\YourPython3Dist\\Scripts\\ipython3-script.py console --pylab=qt")

The Argument console in the call of ipython-script.py is the important one!

In Python 3 with qt backend it works for me. I don't know how it works with py 2.7. (should be no problem if these arguments are supported for ipytho-script.py)