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    <p>Ohh, I definitely recommend <a href="http://www.riverbankcomputing.co.uk/software/pyqt/intro" rel="nofollow">PyQt4</a>. At first, I didn't get all this <code>SIGNAL</code> and <code>EMIT</code> nonsense, but now that I've made a program with it, the <code>QThread</code> module is amazingly useful. </p> <p>As for stability, I have never had a crash, ever. Even while I was debugging half-functional code, QT didn't have any problems. It just threw an error to the console window whenever I clicked a button with an invalid signal slot.</p> <p>GTK, on the other hand, just 'sploded once in a while with no errors whatsoever. Just your extremely descriptive and friendly <code>Segmentation Fault</code>. That was one of the reasons I find PyQt a joy to work with. When you get an error, you actually know what's wrong.</p> <p>I'm pretty sure it's personal preference after that, but one more plus is native-looking GUIs on Mac, Linux, and Windows. GTK+ on Windows (don't get me wrong. I use Ubuntu) just has this X-org feel to it, which disturbs me.</p> <p>Good luck!</p> <hr> <p>Just to make PyQt a bit more attractive, here's an excerpt from my book binding application (it's a bit messy):</p> <pre><code>class Binder(QtCore.QThread): ''' Class for binding the actual book ''' def __init__(self, parent = None): super(Binder, self).__init__(parent) def initialize(self, pages, options, outfile): self.pages = pages self.options = options self.outFile = outfile self.book = organizer.Book() self.enc = Encoder(self.options) self.ocr = ocr.OCR(self.options) self.connect(self.enc, QtCore.SIGNAL('updateProgress(int, int)'), self.updateProgress) def updateProgress(self, percent, item): self.emit(QtCore.SIGNAL('updateProgress(int, QString)'), int(percent), 'Binding the book...') self.emit(QtCore.SIGNAL('updateBackground(int, QColor)'), int(item), QtGui.QColor(170, 255, 170, 120)) if int(percent) == 100: time.sleep(0.5) self.emit(QtCore.SIGNAL('finishedBinding')) def run(self): self.die = False for page in self.pages: self.add_file(page, 'page') if not self.die: self.analyze() if not self.die: self.book.get_dpi() if self.options['ocr'] and not self.die: self.get_ocr() if not self.die: self.enc.initialize(self.book, self.outFile) self.enc.start() </code></pre>
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    1. POWhich GUI frameworks are best for a multi-threaded Python program?
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    1. USBlender
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    1. COSignals and slots are far from non-sense, and recent PyQt and PySide offer a really nice interface to them.
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      1. USRosh Oxymoron
    2. COAlso take a look at new PyQts new style signals which make usage of Signal and Slots less verbose: http://stackoverflow.com/questions/4031489/why-is-pyqt-connect-syntax-so-verbose/4032125#4032125
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      1. USsateesh
    3. COWow, that's pretty cool. Thanks!
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