[PyQt] including Unicode in QListWidget

[Knacktus]

Am 17.06.2012 22:55, schrieb David Beck:
>> Message: 2
>> Date: Sun, 17 Jun 2012 18:42:54 +0200
>> From: Knacktus <knacktus at googlemail.com <mailto:knacktus at googlemail.com>>
>> To: pyqt at riverbankcomputing.com <mailto:pyqt at riverbankcomputing.com>
>> Subject: Re: [PyQt] including Unicode in QListWidget
>> Message-ID: <4FDE090E.1070905 at googlemail.com
>> <mailto:4FDE090E.1070905 at googlemail.com>>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Am 17.06.2012 18:29, schrieb David Beck:
>>> I am trying to build a GUI for navigating through a large XML
>>> database on a Mac running OS 10.7, Python 3.3, PyQt 4. I want to get
>>> a list of the text in all of the nodes called<Orth> and put them into
>>> a QListWidget called "hLexNav". To do this, I wrote the following bit
>>> of code (this isn't the whole thing, just the parts that are supposed
>>> to add items to the listbox):
>>>
>>>
>>> import sys
>>> from PyQt4 import QtCore, QtGui
>>> from xml.dom import minidom
>>> import xml.etree.ElementTree as etree
>>> from fieldbookGui import Ui_Fieldbook
>>> import images
>>> import btnCmds
>>>
>>> class MyForm(QtGui.QMainWindow):
>>> def __init__(self, parent=None):
>>> QtGui.QWidget.__init__(self, parent)
>>> self.ui = Ui_Fieldbook()
>>> self.ui.setupUi(self)
>>>
>>>
>>> xmltree = etree.parse('BabyDb.xml')
>>> root = xmltree.getroot()
>>> for child in root:
>>> self.ui.hLexNav.addItem(child.findtext('Orth'))
>>>
>>> The first 25 items that are returned by child.findtext('Orth') are:
>>>
>>> ['a:', 'a:ch?j', 'a:chul?:', "a:h?:xtu'", 'a:ho:t?n', 'a:k?s',
>>> "a:li:ma'ht?n", 'a:li:st?:n', 'a:m?', "a:ma'ha:'pi'tz?'n",
>>> 'a:mixtzay?n', 'a:nan?:', 'a:t?:n', 'a:tz?:', "a:tzem?'j", 'a:x?:lh',
>>> 'a:xt?m', 'a:x?:x', "a:'h?la'", "a:'j", "a:'jm?", "a:'jnan?:",
>>> "a:'jtz?:", "a:'jtzanan?:", "a:'kn?:"]
>>>
>>> In the QListWidget created by this code, I see only items
>>> corresponding to those elements that do not contain accented vowels
>>> (here, those that don't contain "?", "?", etc.); items that
>>> correpsond to strings with accented vowels are left empty. Further
>>> experimentation with addItem( ), addItems(), and insertItem( ) show
>>> that any string that contains an non-ASCII character results in an
>>> empty Item being inserted into the QListWidget.
>>>
>>> Any ideas about what is going on would be appreciated.
>>
>> Are you 100 % sure that unicode is handled properly while reading the
>> xml? I never had problems with unicode and PyQt but I strictly using
>> unicode strings only in my apps.
>>
>> This for example works for me (Python 2.7):
>>
>> # -*- coding: utf-8 -*-
>>
>> if __name__ == "__main__":
>>
>> import sys
>> from PyQt4.QtGui import *
>> app = QApplication(sys.argv)
>> list_widget = QListWidget()
>> list_widget.addItem(u"??^? l? l?")
>> list_widget.show()
>> app.exec_()
>>
>
> Yes, it seems to be independent of the XML. For instance, I get the same
> thing when I run the little app below (the GUI is generated by pyuic4):
>
>     import sys
>     from PyQt4 import QtCore, QtGui
>
>     try:
>     _fromUtf8 = QtCore.QString.fromUtf8
>     except AttributeError:
>     _fromUtf8 = lambda s: s
>
>     class Ui_UTFWidget(object):
>     def setupUi(self, UTFWidget):
>     UTFWidget.setObjectName(_fromUtf8("UTFWidget"))
>     UTFWidget.resize(400, 300)
>     self.centralWidget = QtGui.QWidget(UTFWidget)
>     self.centralWidget.setObjectName(_fromUtf8("centralWidget"))
>     self.listWidget = QtGui.QListWidget(self.centralWidget)
>     self.listWidget.setGeometry(QtCore.QRect(17, 9, 362, 241))
>     self.listWidget.setObjectName(_fromUtf8("listWidget"))
>     UTFWidget.setCentralWidget(self.centralWidget)
>     self.menuBar = QtGui.QMenuBar(UTFWidget)
>     self.menuBar.setGeometry(QtCore.QRect(0, 0, 400, 22))
>     self.menuBar.setObjectName(_fromUtf8("menuBar"))
>     self.menuUTF_test = QtGui.QMenu(self.menuBar)
>     self.menuUTF_test.setObjectName(_fromUtf8("menuUTF_test"))
>     UTFWidget.setMenuBar(self.menuBar)
>     self.mainToolBar = QtGui.QToolBar(UTFWidget)
>     self.mainToolBar.setObjectName(_fromUtf8("mainToolBar"))
>     UTFWidget.addToolBar(QtCore.Qt.TopToolBarArea, self.mainToolBar)
>     self.statusBar = QtGui.QStatusBar(UTFWidget)
>     self.statusBar.setObjectName(_fromUtf8("statusBar"))
>     UTFWidget.setStatusBar(self.statusBar)
>     self.menuBar.addAction(self.menuUTF_test.menuAction())
>
>     self.retranslateUi(UTFWidget)
>     QtCore.QMetaObject.connectSlotsByName(UTFWidget)
>
>     def retranslateUi(self, UTFWidget):
>     UTFWidget.setWindowTitle(QtGui.QApplication.translate("UTFWidget",
>     "UTFWidget", None, QtGui.QApplication.UnicodeUTF8))
>     self.menuUTF_test.setTitle(QtGui.QApplication.translate("UTFWidget",
>     "UTF test", None, QtGui.QApplication.UnicodeUTF8))
>
>     class MyForm(QtGui.QMainWindow):
>     def __init__(self, parent=None):
>     QtGui.QWidget.__init__(self, parent)
>     self.ui = Ui_UTFWidget()
>     self.ui.setupUi(self)
>
>     self.ui.listWidget.addItem("abcde")
>     self.ui.listWidget.addItem("áɬʔéí")

Make this a unicode string (Python 2.7):

self.ui.listWidget.addItem(u"áɬʔéí")

>     if __name__ == "__main__":
>     app = QtGui.QApplication(sys.argv)
>     myapp = MyForm()
>     myapp.show()
>     sys.exit(app.exec_())
>
>
> notice that there are two additem() methods, one which adds straight
> ASCII, the other which adds some non-ASCII characters. When I run the
> app, I see the first (abcde) in the list widget and don't see the second
> (áɬʔéí). No XML involved.

Works for me with above modification and declaring the source file 
format as utf-8 (Python 2.7).

>



>
>
> _______________________________________________
> PyQt mailing list    PyQt at riverbankcomputing.com
> http://www.riverbankcomputing.com/mailman/listinfo/pyqt