title: Linking QLineEdit's "enter" event to a slot?
body: <p>I do have the following code:</p>
  
  <pre><code>def init_widgets(self):
          mainLayout = QtGui.QGridLayout()
  
          self.label1 = QtGui.QLabel("Enter a song name: ")
          self.search_lineEdit = QtGui.QLineEdit()
          self.search_button = QtGui.QPushButton("&amp;Search") # QCommandLinkButton
          self.search_button.clicked.connect(self.search_slot)
          self.table = self.createTable()
          self.label2 = QtGui.QLabel("iQuality v1.00 by Itay Brandes")
  
          mainLayout.addWidget(self.label1, 0, 0)
          mainLayout.addWidget(self.search_lineEdit, 0, 1)
          mainLayout.addWidget(self.search_button, 0, 2)
          mainLayout.addWidget(self.table, 1, 0, 1, 0)
          mainLayout.addWidget(self.label2, 2, 0)
  
          self.setLayout(mainLayout)
  </code></pre>
  
  <p>How can I run <code>self.search_slot</code> if the user presses the enter button on <code>self.search_lineEdit</code>?</p>