Arch Linux

Description:
Importing pandas after matplotlib.pyplot returns a Runtime error. If I

$ python3
Python 3.6.1 (default, Mar 27 2017, 00:27:06)
[GCC 6.3.1 20170306] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.pyplot
>>> import pandas
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.6/site-packages/pandas/__init__.py", line 58, in <module>
from pandas.io.api import *
File "/usr/lib/python3.6/site-packages/pandas/io/api.py", line 8, in <module>
from pandas.io.clipboard.clipboard import read_clipboard
File "/usr/lib/python3.6/site-packages/pandas/io/clipboard/__init__.py", line 103, in <module>
copy, paste = determine_clipboard()
File "/usr/lib/python3.6/site-packages/pandas/io/clipboard/__init__.py", line 76, in determine_clipboard
return init_qt_clipboard()
File "/usr/lib/python3.6/site-packages/pandas/io/clipboard/clipboards.py", line 49, in init_qt_clipboard
from PyQt4.QtGui import QApplication
RuntimeError: the PyQt4.QtCore and PyQt5.QtCore modules both wrap the QObject class


Additional info:
* package version(s)
python-pandas 0.20.1-1

* config and/or log files etc.


Steps to reproduce:
See above.