Retrieving text from password field [python][pyqt4]

def welcomeStage (self):        
    self.test = QtGui.QLineEdit (self)
    self.test.move (50, 150)

    QtCore.QObject.connect (self.test, QtCore.SIGNAL ('returnPressed()'), self.passwordStage)

def passwordStage (self):
    self.email = self.test.text()
    self.test.clear()
    self.test.setEchoMode (QtGui.QLineEdit.Password)
    QtCore.QObject.connect (self.test, QtCore.SIGNAL ('returnPressed()'), self.loginStage)

def loginStage (self):
    self.pwd = self.test.text()
    print self.pwd
    if len (self.pwd) < 0:
        welcomeStage ()
        return

Simply put, I am making a login form. The user enters their email, then the text field is cleared and echo mode is set to Password mode. The text() function returns the email fine, but when I call text() after I have changed the echo mode, it returns 0. I've been pouring over the documentation lo开发者_如何学Coking for anything regarding the text() function and how it operates when Password mode is on, however I have not found anything. Does anybody know how this is done?

I can't offer a fix for using a QLineEdit, but you can get passwords in a QInputDialog by specifying mode in the getText() method. Like this:

diag = QtGui.QInputDialog
s = None
while s is None:
    qstring, ok = diag.getText(self, QtCore.QString(title), QtCore.QString(text), mode=QtGui.QLineEdit.Password)
    s = str(qstring)
    if ok is False: # user pressed Cancel
        return None
    if s == '':     # user entered nothing
        s = None
return s