title: How to connect custom signal to slot in pyside with the new syntax?
body: <p>This is an example <a href="https://www.youtube.com/watch?v=ooEzOyBiOLo&amp;index=6&amp;list=PLA955A8F9A95378CE" rel="nofollow">from an video tutorial:</a></p>
  
  <pre><code>#!/usr/bin/env python3
  
  import sys
  from PySide.QtCore import *
  from PySide.QtGui import *
  
  class ZeroSpinBox(QSpinBox):
  
      zeros = 0
  
      def __init__(self):
          super().__init__()
          self.valueChanged.connect(self.checkzero)
  
      def checkzero(self):
          if self.value() == 0:
              self.zeros += 1
              self.emit(SIGNAL("atzero(int)"), self.zeros)
  
  
  
  class Form(QDialog):
  
      def __init__(self):
          super().__init__()
  
          dial = QDial()
          dial.setNotchesVisible(True)
          zerospinbox = ZeroSpinBox()
          layout = QHBoxLayout()
          layout.addWidget(dial)
          layout.addWidget(zerospinbox)
          self.setLayout(layout)
  
          dial.valueChanged.connect(zerospinbox.setValue)
          zerospinbox.valueChanged.connect(dial.setValue)
          # zerospinbox.atzero.connect(self.announce)
          self.connect(zerospinbox, SIGNAL("atzero(int)"), self.announce)
  
          self.setWindowTitle("Signals")
  
      def announce(self, zeros):
          print("zerospinbox has been at zero " + str(zeros) + " times.")
  
  
  
  app = QApplication(sys.argv)
  form = Form()
  form.show()
  app.exec_()
  </code></pre>
  
  <p>Note that I have made two connections for the zerospinbox object, the first one with the new connect syntax, the second one with the old syntax. There is also a line for making the same second connection with the new syntax, but it doesn't work, hence it's commented out. The atzero signal is custom made, and it seems signals made this does not work well with the new syntax. Is this due to the methods of emission? How can I applied the new syntax to the atzero signal as well?</p>