Qt QGraphicsDropShadowEffect is not showing

Question

I am creating a custom widget my_widget inheriting from QWidget.

Here, I have a label to which I would like to apply QGraphicsDropSha

Answer 1

See if this works for you:

#!/usr/bin/env python
#-*- coding:utf-8 -*-

import sip
sip.setapi('QString', 2)
sip.setapi('QVariant', 2)

from PyQt4.QtCore import *
from PyQt4.QtGui import *

class testShadow(QWidget):
    def __init__(self, parent=None):
        super(testShadow, self).__init__(parent)

        self.resize(94, 35)
        self.verticalLayout = QVBoxLayout(self)
        self.verticalLayout.setObjectName("verticalLayout")
        self.label = QLabel(self)
        self.label.setText("Text Label")

        self.shadow = QGraphicsDropShadowEffect(self)
        self.shadow.setBlurRadius(5)
        self.label.setGraphicsEffect(self.shadow)

        self.verticalLayout.addWidget(self.label)

if __name__ == "__main__":
    import  sys

    app = QApplication(sys.argv)
    main = testShadow()
    main.show()
    sys.exit(app.exec_())