...

src/kr/co/swh/lecture/python/pyqt5/pushbutton2.py

 
         button = QPushButton("눌러봐", self)
         button.move(50, 30)
-        button.clicked.connect(self.click)
+        button.clicked.connect(self.pressed)
 
-    def click(self):
+    def pressed(self):
         QMessageBox.about(self, "메세지 박스", "눌렀어요.")
 
 if __name__ == "__main__":