![python - setSizePolicy() with QSizePolicy.Expanding does not work: the child does not expand to the size of the parent - Stack Overflow python - setSizePolicy() with QSizePolicy.Expanding does not work: the child does not expand to the size of the parent - Stack Overflow](https://i.stack.imgur.com/r3pzb.png)
python - setSizePolicy() with QSizePolicy.Expanding does not work: the child does not expand to the size of the parent - Stack Overflow
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layout - Qt4.8 The effect of setSizePolicy(QSizePolicy ::Expanding , QSizePolicy ::Expanding) When I using QGridLayout - Stack Overflow
![python - setSizePolicy() with QSizePolicy.Expanding does not work: the child does not expand to the size of the parent - Stack Overflow python - setSizePolicy() with QSizePolicy.Expanding does not work: the child does not expand to the size of the parent - Stack Overflow](https://i.stack.imgur.com/Ixya4.png)