dialog.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-

"""
ZetCode PyQt5 tutorial

In this example, we receive data from
a QInputDialog dialog.

author: Jan Bodnar
website: zetcode.com
last edited: January 2015
"""

import sys
from PyQt5.QtWidgets import (QWidget, QPushButton, QLineEdit,
                             QInputDialog, QApplication, QVBoxLayout)


class Example(QWidget):

    def __init__(self):
        super().__init__()

        self.initUI()

    def initUI(self):
        self.btn = QPushButton('Dialog', self)
        self.btn.clicked.connect(self.showDialog)

        self.le = QLineEdit(self)
        vbox = QVBoxLayout()
        vbox.addWidget(self.btn)
        vbox.addWidget(self.le)

        self.setLayout(vbox)
        self.setGeometry(300, 300, 290, 150)
        self.setWindowTitle('Input dialog')
        self.show()

    def showDialog(self):
        text, ok = QInputDialog.getText(self, 'Input Dialog',
                                        'Enter your name:')

        if ok:
            self.le.setText(str(text))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())