[PySide] Passing parameter from one class to an external function

[craf]

Hi Everyone!.

Recently  start with Pyside and I would like to know how I can call the
function greetings from within the Form class, passing the self
argument.

My Code:---------------------------------------------------

import sys
from PySide.QtCore import *
from PySide.QtGui import *


class Form(QDialog):
   
    def __init__(self, parent=None):

        QDialog.__init__(self, parent=None)        

        self.edit = QLineEdit("Write my name here")
        self.button = QPushButton("Show Greetings")        
        self.layout = QVBoxLayout()
        self.layout.addWidget(self.edit)
        self.layout.addWidget(self.button)       
        self.setLayout(self.layout)
        self.button.clicked.connect(greetings)
        
  
def greetings(self):
    print ("Hello %s" % self.edit.text())    
    
 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    form = Form()
    form.show()
    sys.exit(app.exec_())

----------------------------------------------------

I try with:

self.button.clicked.connect(greetings)
self.button.clicked.connect(lambda e: greetings(self))
self.button.clicked.connect(lambda e, self=self:greetings(self))

but, nothing.

I appreciate any information

Best Regards

Cris