title: Find a Value in a cell QT Table Widget by having row number and column number in Python
body: <p>I have a QT Table Widget in python where I find the row number and the column number of the last item changed by the user in this way :</p>
  <pre><code>class elencoviaggi(QtWidgets.QDialog):
   def __init__(self):
      super(elencoviaggi, self).__init__()
      uic.loadUi('elenco_viaggi.ui', self)
      self.tabella_registrazioni.setColumnWidth(0, 30)
      self.tabella_registrazioni.setColumnWidth(1, 100)
      self.botton = self.findChild(QtWidgets.QPushButton, 'pushButton_3') 
      self.botton.clicked.connect(self.salva) !
  
   def salva(self): 
      print(self.tabella_registrazioni.itemChanged.connect(self.changeIcon))   
   def changeIcon(self, item):
      row = item.row()
      col = item.column()
  </code></pre>
  <p>In this part of the code I correctly find through a button the row number and the column number of the last item changed by the user, how can I store in a variable the item that has column 0 and as row the &quot;row&quot; variable declared? I tried this tabella_registrazioni.Item(row, 0) but doesn't work.
  I don't know what is the command to find an item using row and column numbers</p>