[PyQt] including Unicode in QListWidget

Phil Thompson phil at riverbankcomputing.com
Tue Jun 19 15:42:25 BST 2012

On Sun, 17 Jun 2012 10:29:58 -0600, David Beck <dbeck at ualberta.ca> wrote:
> I am trying to build a GUI for navigating through a large XML database
> a Mac running OS 10.7, Python 3.3, PyQt 4. I want to get a list of the
> 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
> 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:cháj', 'a:chulá:', "a:hé:xtu'", 'a:ho:tán', 'a:kús',
> "a:li:ma'htín", 'a:li:stá:n', 'a:má', "a:ma'ha:'pi'tzí'n",
> 'a:nanú:', 'a:tú:n', 'a:tzá:', "a:tzemá'j", 'a:xí:lh', 'a:xtúm',
> "a:'hála'", "a:'j", "a:'jmá", "a:'jnanú:", "a:'jtzá:", "a:'jtzananú:",
> "a:'kní:"]
> In the QListWidget created by this code, I see only items corresponding
> those elements that do not contain accented vowels (here, those that
> contain "á", "ú", etc.); items that correpsond to strings with accented
> vowels are left empty. Further experimentation with addItem( ),
> and insertItem( ) show that any string that contains an non-ASCII
> results in an empty Item being inserted into the QListWidget.
> Any ideas about what is going on would be appreciated.

It's a compiler bug, see...


Tonight's snapshot will disable the PEP 393 support if LLVM is being used.
Another workaround is to enable Qt4's clang support...

    cd /path/to/qt/mkspecs
    ln -s unsupported/macx-clang macx-clang


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