python_qt_binding and QStringList,QStringListModel missing

asked 2013-10-02 19:27:48 -0500

pgebhard
11 ●1 ●1 ●3

updated 2014-01-28 17:18:07 -0500

ngrennan
1 ●1 ●1

I recently incorporated an Rviz widget into my custom GUI, and the Rviz Python bindings require the use of 'python_qt_binding' (I used to just directly import PyQt4). Unfortunately, this is causing some problems in the rest of my code. When using from python_qt_binding.QtCore import *, I am now getting a NameError when attempting to create QStringList or QStringListModel objects (NameError: global name 'QStringList' is not defined).

Am I doing something wrong, or am I expected to work around this?

answered 2013-10-03 13:05:36 -0500

Dirk Thomas
16276 ●62 ●190 ●215

updated 2013-10-03 13:06:37 -0500

I guess python_qt_binding is not handling these types very well since they are treated special in the bindings. I am not sure if that is easily fixable in python_qt_binding but I have filled a ticket for that: https://github.com/ros-visualization/python_qt_binding/issues/8

For your specific case I would suggest to just use plain Python strings and Python lists of strings. That should work seemless with the QStringListModel API. And in Python 3.x the types QString / QStringList will go away anyway. So it would make your code also more future proof.

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python_qt_binding uses PyQt4 with SIP API version 2. And for that there are no QString / QStringList types defines anymore. Please see http://qt-project.org/wiki/Differences_Between_PySide_and_PyQt#b7669e9ad9355d8b4e8fdccade317b2b for more information.

Dirk Thomas ( 2013-10-04 15:50:41 -0500 )edit

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