pyplot not working in ipython #80147
Description
I'm using NixOS 19.09, and I'm unable to use pyplot from within ipython. It works in a normal Python interpreter.
λ python3.7
Python 3.7.5 (default, Oct 14 2019, 23:08:55)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.pyplot as plt
>>> quit()
λ
λ ipython3
Python 3.7.5 (default, Oct 14 2019, 23:08:55)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.6.1 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import matplotlib.pyplot as plt
In [2]: qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
zsh: abort (core dumped) ipython3
λ