# -*- coding:utf-8 -*-

 '''

 Created on Sep 21, 2018

 @author: SaShuangYiBing

 Comment:

 '''

 import sys

 from PyQt5.QtWidgets import QApplication,QWidget,QPushButton,QLineEdit

 class Button(QPushButton):

     def __init__(self,title,parent):

         super().__init__(title,parent)

         self.setAcceptDrops(True)

     def dragEnterEvent(self,e):

         if e.mimeData().hasFormat('text/Plain'):

             e.accept()

         else:

             e.ignore()

     def dropEvent(self,e):

         self.setText(e.mimeData().text())

 class New_test(QWidget):

     def __init__(self):

         super().__init__()

         self.initUI()

     def initUI(self):

         edit = QLineEdit('',self)

         edit.setDragEnabled(True)

         edit.move(30,65)

         button = Button('Button',self)

         button.move(190,65)

         self.setWindowTitle('Simple drag & drop')

         self.setGeometry(300,300,300,150)

         self.show()

 if __name__ == '__main__':

     app = QApplication(sys.argv)

     ex = New_test()

     sys.exit(app.exec_())