title: Copy strings from multiple lineEdit slots as variable to one textEdit slot in PyQt4
body: <p>To be more crystal clear, here how the things might work.</p>
  
  <p>In python, to create a variable, simply we use </p>
  
  <pre><code>var1 = raw_input('your name?') 
  </code></pre>
  
  <p>So that when using </p>
  
  <pre><code>print 'your name is ' +var1
  </code></pre>
  
  <p>It will print the string stored in var1.</p>
  
  <p>The question is how to make that using Pyqt4? I have 3 lineEdit symbolize as name, age and gender and one textEdit to print strings from lineEdit into this textEdit. it's just like making a phonebook. is it possible? how the code will look like? i'm eagerly to know the answer..</p>
  
  <p>Here i provide some source to make things clearer.</p>
  
  <p>This is the ui:</p>
  
  <pre><code># -*- coding: utf-8 -*-
  
  # Form implementation generated from reading ui file 'phonebook.ui'
  #
  # Created: Sat Oct  2 15:18:52 2010
  #      by: PyQt4 UI code generator 4.7.2
  #
  # WARNING! All changes made in this file will be lost!
  
  from PyQt4 import QtCore, QtGui
  
  class Ui_phonebook(object):
      def setupUi(self, phonebook):
          phonebook.setObjectName("phonebook")
          phonebook.resize(240, 300)
          phonebook.setMinimumSize(QtCore.QSize(240, 300))
          phonebook.setMaximumSize(QtCore.QSize(240, 300))
          self.label = QtGui.QLabel(phonebook)
          self.label.setGeometry(QtCore.QRect(20, 30, 57, 14))
          self.label.setObjectName("label")
          self.label_2 = QtGui.QLabel(phonebook)
          self.label_2.setGeometry(QtCore.QRect(20, 60, 57, 14))
          self.label_2.setObjectName("label_2")
          self.lineEdit = QtGui.QLineEdit(phonebook)
          self.lineEdit.setGeometry(QtCore.QRect(110, 30, 113, 20))
          self.lineEdit.setObjectName("lineEdit")
          self.lineEdit_2 = QtGui.QLineEdit(phonebook)
          self.lineEdit_2.setGeometry(QtCore.QRect(110, 60, 113, 20))
          self.lineEdit_2.setObjectName("lineEdit_2")
          self.textEdit = QtGui.QTextEdit(phonebook)
          self.textEdit.setGeometry(QtCore.QRect(20, 142, 201, 141))
          self.textEdit.setObjectName("textEdit")
          self.pushButton = QtGui.QPushButton(phonebook)
          self.pushButton.setGeometry(QtCore.QRect(70, 100, 89, 23))
          self.pushButton.setObjectName("pushButton")
  
          self.retranslateUi(phonebook)
          QtCore.QMetaObject.connectSlotsByName(phonebook)
  
      def retranslateUi(self, phonebook):
          phonebook.setWindowTitle(QtGui.QApplication.translate("phonebook", "Simple Phonebook", None, QtGui.QApplication.UnicodeUTF8))
          self.label.setText(QtGui.QApplication.translate("phonebook", "Name:", None, QtGui.QApplication.UnicodeUTF8))
          self.label_2.setText(QtGui.QApplication.translate("phonebook", "E-mail:", None, QtGui.QApplication.UnicodeUTF8))
          self.lineEdit.setText(QtGui.QApplication.translate("phonebook", "lineEdit", None, QtGui.QApplication.UnicodeUTF8))
          self.lineEdit_2.setText(QtGui.QApplication.translate("phonebook", "lineEdit_2", None, QtGui.QApplication.UnicodeUTF8))
          self.pushButton.setText(QtGui.QApplication.translate("phonebook", "Preview", None, QtGui.QApplication.UnicodeUTF8))
  </code></pre>
  
  <p>This is main source:</p>
  
  <pre><code>#! /usr/bin/env python
  
  import sys
  from PyQt4 import QtCore, QtGui
  from phonebook import Ui_phonebook
  
  class Main(QtGui.QDialog):
    def __init__(self, parent=None):
      QtGui.QWidget.__init__(self, parent)
      self.ui = Ui_phonebook()
      self.ui.setupUi(self)
      self.center()
  
      QtCore.QObject.connect(self.ui.pushButton, QtCore.SIGNAL('clicked()'), self.preview)
  
    def preview(self):
      lineEdit = '"content inside lineEdit"'
      lineEdit_2 = '"content inside lineEdit_2"'
      self.ui.textEdit.setText('Name: ' +lineEdit +'\n\nEmail: ' +lineEdit_2)
  
    def center(self):
      screen = QtGui.QDesktopWidget().screenGeometry()
      size =  self.geometry()
      self.move((screen.width()-size.width())/2, (screen.height()-size.height())/2)
  
  
  if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    main = Main()
    main.show()
    sys.exit(app.exec_())
  </code></pre>