PyQt5 pyplot error #6858
Description
Ubuntu 16.04
Python 3.5.2
matplotlib 1.5.1
PyQt5 5.7
Installed using pip in anaconda
QObject::connect: Cannot connect NavigationToolbar2QT::message(QString) to (null)::_show_message()
Traceback (most recent call last):
File "test_conv.py", line 14, in
plt.plot(xvals)
File "/home/padraig/.local/lib/python3.5/site-packages/matplotlib/pyplot.py", line 3147, in plot
ax = gca()
File "/home/padraig/.local/lib/python3.5/site-packages/matplotlib/pyplot.py", line 928, in gca
return gcf().gca(*_kwargs)
File "/home/padraig/.local/lib/python3.5/site-packages/matplotlib/pyplot.py", line 578, in gcf
return figure()
File "/home/padraig/.local/lib/python3.5/site-packages/matplotlib/pyplot.py", line 527, in figure
*_kwargs)
File "/home/padraig/.local/lib/python3.5/site-packages/matplotlib/backends/backend_qt5agg.py", line 43, in new_figure_manager
return new_figure_manager_given_figure(num, thisFig)
File "/home/padraig/.local/lib/python3.5/site-packages/matplotlib/backends/backend_qt5agg.py", line 51, in new_figure_manager_given_figure
return FigureManagerQT(canvas, num)
File "/home/padraig/.local/lib/python3.5/site-packages/matplotlib/backends/backend_qt5.py", line 465, in init
self.toolbar.message.connect(self._show_message)
TypeError: connect() failed between NavigationToolbar2QT.message[str] and _show_message()
Activity
Kojoley commented on Jul 29, 2016
Duplicate #6853
tacaswell commented on Jul 31, 2016
Closed by #6854
mogrodnik commented on Mar 20, 2017
I am having similar output after updating (with portage):
sip-4.19.1 [from 4.18]
PyQt5-5.7.1 [from 5.5.1]
PyQt4-4.12 [from 4.11.4-r1]
and trying to run any plotting script.
Error message is:
QObject::connect: Cannot connect NavigationToolbar2QT::message(QString) to (null)::_show_message()
Traceback (most recent call last):
File "2.py", line 5, in
plt.xlim (0.1 , 5.0 )
File "/usr/lib64/python3.4/site-packages/matplotlib/pyplot.py", line 1488, in xlim
ax = gca()
File "/usr/lib64/python3.4/site-packages/matplotlib/pyplot.py", line 828, in gca
ax = gcf().gca(**kwargs)
File "/usr/lib64/python3.4/site-packages/matplotlib/pyplot.py", line 462, in gcf
return figure()
File "/usr/lib64/python3.4/site-packages/matplotlib/pyplot.py", line 435, in figure
**kwargs)
File "/usr/lib64/python3.4/site-packages/matplotlib/backends/backend_qt5agg.py", line 48, in new_figure_manager
return new_figure_manager_given_figure(num, thisFig)
File "/usr/lib64/python3.4/site-packages/matplotlib/backends/backend_qt5agg.py", line 56, in new_figure_manager_given_figure
return FigureManagerQT(canvas, num)
File "/usr/lib64/python3.4/site-packages/matplotlib/backends/backend_qt5.py", line 481, in init
self.toolbar.message.connect(self._show_message)
TypeError: connect() failed between NavigationToolbar2QT.message[str] and _show_message()
With my current configuration this can be reproduced with plotting script using matplotlib, enough should be just:
from pylab import *
import matplotlib.pyplot as plt
plt.xlim (0.1 , 5.0 )
I use matplotlib 1.4.3
python version 2.7.12 (result is the same for python 3.4.5)
platform version 1.0.7
on gentoo (version 4.4.39-gentoo (root@migi) (gcc version 4.9.4 (Gentoo 4.9.4 p1.0, pie-0.6.4) ) #1 SMP Mon Feb 20 15:16:15 CET 2017)
If sip, PyQt4 and PyQt5 are downgraded to previously used versions, everything runs smoothly.
QuLogic commented on Mar 20, 2017
As you can see from the milestone, this bug was fixed in 2.0.0; 1.4.3 is very old now.
fstefanoni commented on Jun 8, 2017
Hi!
I use matplotlib 1.5.1, Python 3.5.2 and Anaconda 4.1.1.
I get the same error message:
QObject::connect: Cannot connect NavigationToolbar2QT::message(QString) to (null)::_show_message()
Traceback (most recent call last):
File "/Users/francescastefanoni/Desktop/read.py", line 27, in
plt.plot(t,IOP)
File "/Users/francescastefanoni/anaconda/lib/python3.5/site-packages/matplotlib/pyplot.py", line 3147, in plot
ax = gca()
File "/Users/francescastefanoni/anaconda/lib/python3.5/site-packages/matplotlib/pyplot.py", line 928, in gca
return gcf().gca(**kwargs)
File "/Users/francescastefanoni/anaconda/lib/python3.5/site-packages/matplotlib/pyplot.py", line 578, in gcf
return figure()
File "/Users/francescastefanoni/anaconda/lib/python3.5/site-packages/matplotlib/pyplot.py", line 527, in figure
**kwargs)
File "/Users/francescastefanoni/anaconda/lib/python3.5/site-packages/matplotlib/backends/backend_qt5agg.py", line 43, in new_figure_manager
return new_figure_manager_given_figure(num, thisFig)
File "/Users/francescastefanoni/anaconda/lib/python3.5/site-packages/matplotlib/backends/backend_qt5agg.py", line 51, in new_figure_manager_given_figure
return FigureManagerQT(canvas, num)
File "/Users/francescastefanoni/anaconda/lib/python3.5/site-packages/matplotlib/backends/backend_qt5.py", line 465, in init
self.toolbar.message.connect(self._show_message)
TypeError: connect() failed between NavigationToolbar2QT.message[str] and _show_message()
Does anybody know which is the problem and how to solve it?? Thank you
jenshnielsen commented on Jun 8, 2017
@fstefanoni this was fixed in matplotlib 1.5.3 you will have to upgrade to at least that version to get the fix
fstefanoni commented on Jun 8, 2017
@jenshnielsen thank you very much!! Now it works:)