Very newbie question how to __init__ classes the right way

[MSDavid]

Hi!
I'm still learning GUI Programming with Python and I found that different authors suggest different ways to initialize classes.

For instance, Venkateshwaran Loganathan in his book "PySide GUI Application Development" always suggests the following form:

@class SomeDialog(QDialog):
def init(self):
QDialog.init(self)
...@

while Bogdan Milanowich in his "video tutorials":https://www.youtube.com/watch?v=0vvb7Kv59qA&index=3&list=PLe2ARo5vBp8A6XZbFYqV2FhWsSP0CnGeL, suggests the following:

@class SomeOtherDialog(QDialog):
def init(self, parent=None)
super(SomeOtherDialog, self).init(parent)
...@

What are the differences?
Which is the best way?

Thanks
D.

P.S. Sorry for bringing down the quality of discussions here ;-) with my questions