[PyQt] Error when double clicking

[dizou]

I have a class that inherits QTreeWidget, in the __init__ I am trying to
connect a double click with a function:


class TreeArea(QTreeWidget):
    def __init__(self, parent):
        .
        .
        .
        self.connect(self, SIGNAL("itemDoubleClicked(QTreeWidgetItem *)"),
self.edit)

def edit(self, item):
       .
       .
       .

However, when I run the program and click on an item I get this error:
TypeError: edit() takes exactly 2 arguments (4 given)

Also, what is the PyQt equivalent of:
setEditTriggers(QAbstractItemView::NoEditTriggers)
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