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From: Hans-Peter Jansen <hpj@urpla.net>
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Subject: =?utf-8?q?=5BPython-de=5D_Re=3A_When_should_I_use_=22parent=3DNone=22_in_=5F=5Fini=5F=5F_and?=
Date: Fri, 08 Oct 2021 18:05:58 +0200
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Mohsen,

in deutschen Usergruppen solltest du dir die Arbeit machenm, auch deutsch z=
u=20
schreiben.

Die Antwort auf diese Frage habe ich dir schon in der vorherigen Mail gegeb=
en.

Cheers,
Pete

Am Freitag, 8. Oktober 2021, 12:17:15 CEST schrieb Mohsen Owzar:
> When should I use "parent=3DNone" in __ini__ and "parent" in super()
> Hi Guys
> I've sent this question to other Python community but didn't get any answ=
er.
> I hope that here I can get an explanation of how to use parent in the
> Python OOP.
>=20
> I'm writing since almost one-year codes in Python, using TKinter and PyQt=
5.
> I'm somehow able to writes GUIs in both of them.
>=20
> But since I'm using more Pyqt5 and using classes with initialization and
> super() constructs, and also I saw lots of videos and examples of coding
> them, I still don=E2=80=99t know exactly how and when should I use the pa=
rent in
> __init()__ and super() construct.
>=20
> For example, the following lines use "parent=3DNone" in the __init__ cons=
truct
> and "parent" in the super() construct. And sometimes I do not see any of
> them in these two constructs.
>=20
> class MyClass1(QWidget):
> def __init__(self, name, parent=3DNone):
> super(MyClass1, self).__init__(parent)
> print(self.parent().test)
>=20
> And sometimes without "parent" like the following:
>=20
> class MyClass2(QWidget):
> def __init__(self, name):
> super(MyClass2, self).__init__()
> print(self.parent().test)
>=20
> Could anyone explain this to me when and for which action I have to use t=
he
> first one "MyClass1" and when the second one "MyClass2"?
>=20
> Mohsen
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