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POQt show windows sequentially
 

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    <p>I'm working on a Python Qt application which starts with a login window. After the login, I want to show the normal application window. As a test, I tried to show the AuthWindow (the login window) twice. The desired effect is for the login window to open once, I close it, then the second opens, etc. What actually happens it that the first opens, I close it, and the program exits.</p> <pre><code>import sys from PyQt4 import QtGui from AuthWindow import AuthWindow def main(): app = QtGui.QApplication(sys.argv) w = AuthWindow() w.show() w = AuthWindow() w.show() sys.exit(app.exec()) if __name__ == '__main__': main() </code></pre> <p>Here's the code for AuthWindow:</p> <pre><code>from PyQt4 import QtGui class AuthWindow(QtGui.QDialog): User, Admin = range(2) def __init__(self, parent = None): super().__init__(parent) self.setWindowTitle('Login') hbox = QtGui.QHBoxLayout(self) vbox = QtGui.QVBoxLayout() self.username = QtGui.QLineEdit() self.password = QtGui.QLineEdit() vbox.addWidget(QtGui.QLabel('Username')) vbox.addWidget(self.username) vbox.addWidget(QtGui.QLabel('Password')) vbox.addWidget(self.password) btn = QtGui.QPushButton('Login') btn.clicked.connect(self.loginClicked) hbox.addLayout(vbox) hbox.addWidget(btn) self.password.setEchoMode(QtGui.QLineEdit.Password) def loginClicked(self, ev): auth = self.checkLogin() print(auth) def checkLogin(self): username = self.username.text() password = self.password.text() print(username) print(password) # login logic will go here... </code></pre>
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