QlistWidget vertical resize to minimum required size

Hey there,

i am actually having big troubles to get a QListWidget to work, so that it resizes (expands) vertically but to a minimum required size.
It should adjust if the QListWidget expands horizontally. So, in general it should just request for the space it's childs request. Did try to find a solution for the whole day and the closest i was able to get was this:

Code:

import sys
from PySide import QtGui, QtCore
 
if __name__ == '__main__':
    app = QtGui.QApplication([])
 
    window = QtGui.QWidget()
    layout = QtGui.QVBoxLayout(window)
 
 
 
    list = QtGui.QListWidget()
 
    sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding,
                                   QtGui.QSizePolicy.Ignored)
    sizePolicy.setHorizontalStretch(0)
    sizePolicy.setVerticalStretch(0)
    sizePolicy.setHeightForWidth(list.sizePolicy().hasHeightForWidth())
 
    list.setSizePolicy(sizePolicy)
    list.setFocusPolicy(QtCore.Qt.NoFocus)
    list.setFrameShape(QtGui.QFrame.NoFrame)
    list.setLineWidth(0)
    list.setAutoScroll(False)
    list.setProperty("showDropIndicator", False)
    list.setDragDropMode(QtGui.QAbstractItemView.NoDragDrop)
    list.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
    list.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
    list.setMovement(QtGui.QListView.Free)
    list.setFlow(QtGui.QListView.LeftToRight)
    list.setProperty("isWrapping", True)
    list.setResizeMode(QtGui.QListView.Adjust)
    list.setLayoutMode(QtGui.QListView.Batched)
    list.setViewMode(QtGui.QListView.ListMode)
    list.setSelectionRectVisible(True)
    list.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
    list.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
 
    for i in range(2):
        item = QtGui.QListWidgetItem()
        widget = QtGui.QWidget()
 
        widget_layout = QtGui.QHBoxLayout()
        edit = QtGui.QLineEdit()
        label = QtGui.QLabel("I love PyQt!")
        widget_layout.addWidget(label)
        widget_layout.addWidget(edit)
        widget_layout.addStretch()
        widget_layout.setSizeConstraint(QtGui.QLayout.SetFixedSize)
        widget.setLayout(widget_layout)
        item.setSizeHint(widget.sizeHint())
        list.addItem(item)
        list.setItemWidget(item, widget)
 
 
    list.setFixedSize(list.sizeHintForColumn(0) + 2 * list.frameWidth(), list.sizeHintForRow(0) * list.count() + 2 * list.frameWidth())
 
    layout.addWidget(list)
    window.show()
 
    sys.exit(app.exec_())