title: How to update QTableWidget?
body: <p>My objective is to update the QTableQidget when new contacts are added. I have no problem adding the contacts or them showing up in the QTableWidget. My problem is that I have to exit out the program and then start it up again in order to see the newly added contacts. Is their a way to update or refresh the QTableWidget to show new contacts when they are added to the database without having to quit the program. I've tried update() and repaint and nothing changes.</p>
  
  <pre><code>class BrowseContacts(QtGui.QWidget):
      #Display New Contacts Widget
      def __init__(self):
          super(BrowseContacts, self).__init__()
          self.initUI()
          self.contactsData()
  
  
      #User Interface
      def initUI(self):
          self.new_layout = QtGui.QGridLayout()
  
          self.contactsTableWidget = QtGui.QTableWidget()
          self.contactsTableWidget.setColumnCount(10)
  
          self.contacts_label = ['First Name', 'Last Name', 'Home Phone', 'Cell Phone', 'Business Name', 'Email Address', 'Address', 'City', 'State', 'Zip Code']
          self.contactsTableWidget.setHorizontalHeaderLabels(self.contacts_label)
          self.contactsTableWidget.setSortingEnabled(True)
  
          self.new_layout.addWidget(self.contactsTableWidget)
          self.setLayout(self.new_layout)
  
          self.setStyleSheet('QTableWidget::item {background-color: #ffffff; color: #000000}' 'QTableWidget::item:selected {background-color: #3aa8ad; color: #ffffff;}')
  
      def contactsData(self):
          #Connect to Database
          connection = sqlite3.connect('contacts.db')
          cur = connection.cursor()
  
          rowcount = cur.execute('''SELECT COUNT(*) FROM contacts''').fetchone()[0]
  
          self.contactsTableWidget.setRowCount(rowcount)
          cur.execute('''SELECT  * FROM contacts''')
  
          for row, contacts in enumerate(cur):
              for column, contact in enumerate(contacts):
                  self.contactsTableWidget.setItem(row, column, QtGui.QTableWidgetItem(str(contact)))
  
          cur.close()
          connection.commit()
          connection.close()
  </code></pre>
  
  <p>Thank You</p>