[PyQt] Leak found in PyQt version 4.8.5-1 / 4.8.5 win32 build

Phil Thompson phil at riverbankcomputing.com
Thu Aug 25 17:39:47 BST 2011


On Mon, 22 Aug 2011 20:00:31 +0200, Carl Wolff <carl.wolff at imtech.nl>
wrote:
> Hello,
> the following piece of code leaks:
> 
> import PyQt4.QtGui
> import PyQt4.QtCore
> import time
> 
> app = PyQt4.QtGui.QApplication([])
> mainWindow = PyQt4.QtGui.QMainWindow()
> 
> while True:
>   button = PyQt4.QtGui.QPushButton(mainWindow)
>   button.parent().findChild(PyQt4.QtCore.QObject, "foo")
>   button.setParent(None)
>   time.sleep(0.01)
> 
> When the findChild call is not done this code does not leak. So the leak
> cause seems to be located somewhere in the findChild processing, or I
must
> be doing something wrong.
> 
> In older version 4.7.3-2 this leak was not there.
> 
> Best regards.
> Carl.

Fixed in tonight's snapshot - thanks.

Phil


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