use super() to call the parent constructor

Cette page n'est pas encore disponible en français, sa traduction est en cours.
Si vous avez des questions ou des retours sur notre projet de traduction actuel, n'hésitez pas à nous contacter.

Metadata

ID: python-best-practices/init-call-parent

Language: Python

Severity: Warning

Category: Best Practices

Description

Calling the parent constructor should be done by calling super(), not by calling the parent object directly.

Non-Compliant Code Examples

class Class(Parent):
    def __init__(self):
        SomeClass.__init__(self)  # should use super()

Compliant Code Examples

# More than one parent, we need to know exactly what
# parent constructor to use
class DummyCIVisibilityWriter(DummyWriterMixin, CIVisibilityWriter):
    def __init__(self, *args, **kwargs):
        CIVisibilityWriter.__init__(self, *args, **kwargs)
        DummyWriterMixin.__init__(self, *args, **kwargs)
        self._encoded = None

class Class(Parent):
    def foo(self):
        SomeClass.__init__(self)  # outside of __init__, valid

class Class(Parent):
    def __init__(self):
        super().__init__(self)