PyQt5--TextDrag

 # -*- 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_())
         

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