Extension get_started misbehaved on event startup (see debug window for stack trace)
Opensesame 3.1.6, Arch linux
Extension error
item-stack:
exception message: fromTheme() takes no keyword arguments
time: Wed Feb 8 15:59:14 2017
exception type: TypeError
Traceback:
File "/usr/lib/python2.7/site-packages/libqtopensesame/extensions/_extension_manager.py", line 133, in fire
ext.fire(event, **kwdict)
File "/usr/lib/python2.7/site-packages/libqtopensesame/extensions/_base_extension.py", line 386, in fire
getattr(self, u'event_%s' % event)(**kwdict)
File "/usr/share/opensesame_extensions/get_started/get_started.py", line 108, in event_startup
self.main_window.open_file(path=path)
File "/usr/lib/python2.7/site-packages/libqtopensesame/qtopensesame.py", line 760, in open_file
self.ui.pool_widget.refresh()
File "/usr/lib/python2.7/site-packages/libqtopensesame/widgets/pool_widget.py", line 184, in refresh
icon = self.theme.qfileicon(self.pool[path])
File "/usr/lib/python2.7/site-packages/libqtopensesame/misc/theme.py", line 123, in qfileicon
fallback=QtGui.QIcon.fromTheme(fallback))
TypeError: fromTheme() takes no keyword arguments
I've just notice that this leads to variable inspector not showing and pool shown as empty. Clicking on variable inspector button does nothing, but clicking on pool button gives the following.
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/libqtopensesame/qtopensesame.py", line 618, in toggle_pool
self.ui.pool_widget.refresh()
File "/usr/lib/python2.7/site-packages/libqtopensesame/widgets/pool_widget.py", line 184, in refresh
icon = self.theme.qfileicon(self.pool[path])
File "/usr/lib/python2.7/site-packages/libqtopensesame/misc/theme.py", line 123, in qfileicon
fallback=QtGui.QIcon.fromTheme(fallback))
TypeError: fromTheme() takes no keyword arguments
Looks like something with the theme and Qt libs?
Hike
Comments
Hi Hike,
You're using an incompatible version of PyQt—probably a very old version of PyQt4, because
fromTheme()has accepted thefallbackkeyword for ages. I would check your package manager to see which version you're using, and upgrade if possible; or install PyQt5 (in which case you'll probably have to install several PyQt5 packages, but you'll find that out along the way).Cheers!
Sebastiaan
Check out SigmundAI.eu for our OpenSesame AI assistant!
I've got python-pyqt4 4.12-4 installed as well as python2-pyqt5 5.7.1-3 , which are the latest on https://riverbankcomputing.com/software/pyqt/download
Arch linux is a rolling disto, so it usually has the latest (more or less stable) packages.
What do you see if you run the following lines in a Python interpreter (make sure it's the same Python as used by OpenSesame):
This will print out the Qt Python library that is used. There are three possibilities:
pyqt(= PyQt4),pyqt5, andpyside. The first two should work; the last one is untested.Check out SigmundAI.eu for our OpenSesame AI assistant!
It gives me
pyqt5both in OpenSesame and in python interpreter. Both use Python 2.7.13, which is the latest.Thanks for looking into this!
Sebastiaan, do you think AnyQt ( https://pypi.python.org/pypi/AnyQt/0.0.6 ) might be helpful here?
I'm using Orange ( http://orange.biolab.si/ ), and they recently implemented this to fight the PyQt4 vs PyQt5 issue.
@Daniel just sent a pull request (520) to fix this issue, so it should be resolved in 3.1.7.
OpenSesame uses something similar, called
qtpy, to provide compatibility with both PyQt4 and PyQt5. But these compatibility layers essentially just remap the way you import PyQt modules. They don't change the APIs at the level of keywords and arguments, which is the problem here. I suspect that they PyQt developers accidentally changed this.Check out SigmundAI.eu for our OpenSesame AI assistant!