How do i resize the contents of a QScrollArea as more widgets are placed inside

If you’re coming here from Google and not having luck with the accepted answer, that’s because you’re missing the other secret invocation: QScrollArea::setWidget. You must create and explicitly identify a single widget which is to be scrolled. It’s not enough to just add the item as a child! Adding multiple items directly to the ScrollArea will also not work.

This script demonstrates a simple working example of QScrollArea:

from PySide.QtGui import *

app = QApplication([])

scroll = QScrollArea()
scroll.setWidgetResizable(True) # CRITICAL

inner = QFrame(scroll)

scroll.setWidget(inner) # CRITICAL

for i in range(40):
    b = QPushButton(inner)

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