Quick note: I had trouble with formulating my question. I do not know very much about jupyter-qtconsole, so I am not very sure what issue I am actually facing.
I am on mac book with os x 10.10.5 running pyenv virtual environments. A typical fresh virtual environment gets the following installed:
numpy
scipy
matplotlib
jupyter
qtconsole
pyqt5
sip (Recent addition)
jupyter_qtconsole_colorschemes
To bring up the console from the command line -> jupyter qtconsole with alias jqt
Today I went through this process and came upon an error. Note, my other virtual environments still work great.
Below is the error that I have found which is reproducible:
Cloud-Control:codingProjects KJSwanson$ cd 704
pyenv-virtualenv: deactivate 3.6.0/envs/test2
pyenv-virtualenv: activate 704
pyenv-virtualenv: prompt changing will be removed from future release. configure `export PYENV_VIRTUALENV_DISABLE_PROMPT=1' to simulate the behavior.
(704)
Cloud-Control:704 KJSwanson$ jqt
Traceback (most recent call last):
File "/Users/KJSwanson/.pyenv/versions/704/bin/jupyter-qtconsole", line 7, in <module>
from qtconsole.qtconsoleapp import main
File "/Users/KJSwanson/.pyenv/versions/3.6.4/envs/704/lib/python3.6/site-packages/qtconsole/qtconsoleapp.py", line 60, in <module>
from qtconsole.qt import QtCore, QtGui
File "/Users/KJSwanson/.pyenv/versions/3.6.4/envs/704/lib/python3.6/site-packages/qtconsole/qt.py", line 23, in <module>
QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts)
File "/Users/KJSwanson/.pyenv/versions/3.6.4/envs/704/lib/python3.6/site-packages/qtconsole/qt_loaders.py", line 365, in load_qt
result = loaders[api]()
File "/Users/KJSwanson/.pyenv/versions/3.6.4/envs/704/lib/python3.6/site-packages/qtconsole/qt_loaders.py", line 272, in import_pyqt5
from PyQt5 import QtCore, QtSvg, QtWidgets, QtGui, QtPrintSupport
ImportError: dlopen(/Users/KJSwanson/.pyenv/versions/3.6.4/envs/704/lib/python3.6/site-packages/PyQt5/QtCore.so, 2): Symbol not found: __os_log_default
Referenced from: /Users/KJSwanson/.pyenv/versions/3.6.4/envs/704/lib/python3.6/site-packages/PyQt5/Qt/lib/QtCore.framework/Versions/5/QtCore (which was built for Mac OS X 10.11)
Expected in: /usr/lib/libSystem.B.dylib
in /Users/KJSwanson/.pyenv/versions/3.6.4/envs/704/lib/python3.6/site-packages/PyQt5/Qt/lib/QtCore.framework/Versions/5/QtCore
-> (which was built for Mac OS X 10.11)
1) Since my machine OS version is 10.10.5 is this in fact why I am having issues with jupyter qtconsole? (Some update to the module jupyter-qtconsole that conflicts?)
2) If this is not the reason, any suggestions on what the problem might be?
Here is the deal.
PyQt5 was the issue. The latest versions seems to require os x 10.11.x.
My solution was to uninstall PyQt5 and install the version, v=5.9.2, which is the version that works in a different virtual environment.