Keyboard bindings are not working either. Other things like zooming seem to work correctly.

#8931 fixed the mixed resolution issue on Qt5. I'm not seeing the same issues as you on the OSX backend, so maybe it's a python 2 only issue.

Ok thank you very much. Do I have to make the changes from #8931 in the .py files myself or I can download them somewhere?

Well, if I copy and past the corresponding corrected file (backend_qt5.py), I have the following error when starting ipython: "ImportError: cannot import name _Backend".
Am I doing something wrong!

That file also depends on other files that have changed since 2.0.2 has been released, so just copying that file will not work. I'll let the OSX devs comment on the best way to install off master.

How exactly

The problem with mac may be related related to IPython's switch from readline -> prompt toolkit (but if zoom is working, that may not be the issue).

Have you tried doing %matplotlib to make sure the event loop integration is set up correctly?

There are also issue with osx + 'framework' builds see http://matplotlib.org/faq/osx_framework.html#osxframework-faq

Zoom is indeed working for the macosx backend (note that I used a terminal to run python with: ipython --pylab). It worked before with previous version of matplotlib and ipython. What about PyQt5 and the changes from #8931, how can I make them work on my computer?

I did it yesterday and it did not change anything unfortunately.

Ok, so I removed all matplotlib versions I had in my .../site-packages/ directory, and installed the fresh one. The PyQt5 mixed resolution display (#8931) issue is fixed for me now. Thanks.

@mdehoon Any guidance on what is wrong with the native backend?

Now that I removed some matplotlib versions, I have the error saying that python is not installed as a framework, so back to the link you sent.

With conda you can do conda install python.app, and then using pythonw in place of python at the command line should fix that problem.

I use ipython --pylab

I can't get IPython to run with the osx backend.

If I run a plot from the command line using pythonw, I can't reproduce any problems with the keyboard. The default keybindings work and saving a figure is fine.

The issue in IPython is likely missing integration with prompt toolkit (attn @Carreau )

@dopplershift I can't get ipython to rin the macos backend either. It gives me the "Framework required" error...

I observed this issue on a number of systems today, but did not get details of IPython / OSX versions, but mostly with mpl 2.1 (I think?).

@jklymak, in a conda environment, this works for me with matplotlib 2.1.0.post222+gad730d131 (which is just what I happen to have in that environment at the moment):

(test) efiring@manini2:~/currents/temp/merger_qt2$ pythonw `which ipython`
Python 3.5.2 |Anaconda custom (x86_64)| (default, Jul  2 2016, 17:52:12)
Type 'copyright', 'credits' or 'license' for more information
IPython 6.2.1 -- An enhanced Interactive Python. Type '?' for help.

In [1]: %matplotlib osx

In [2]: import matplotlib.pyplot as plt

In [3]: plt.plot([1,2,3,2,1])
[<matplotlib.lines.Line2D at 0x115e157b8>]

Ah OK, didn't think to try a magic! Thanks!

Oh, and the which python trick. OK that works. But...

...but the buttons don't work quite right. Very strange. Zoom and pan seem to work, but home, backwards, and forwards are erratic.

Both the forward/back/home buttons and the keyboard events are working fine for me with the current v2.1.x branch in IPython (using %matplotlib osx). I'm going to close this out, but feel free to re-open if you find this is a problem with 2.1.1 when that is released.