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| -rw-r--r-- | Doc/faq/programming.rst | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/Doc/faq/programming.rst b/Doc/faq/programming.rst index 4a6f1ca..fa7b22b 100644 --- a/Doc/faq/programming.rst +++ b/Doc/faq/programming.rst @@ -1613,9 +1613,16 @@ method too, and it must do so carefully. The basic implementation of self.__dict__[name] = value ... -Most :meth:`!__setattr__` implementations must modify -:attr:`self.__dict__ <object.__dict__>` to store -local state for self without causing an infinite recursion. +Many :meth:`~object.__setattr__` implementations call :meth:`!object.__setattr__` to set +an attribute on self without causing infinite recursion:: + + class X: + def __setattr__(self, name, value): + # Custom logic here... + object.__setattr__(self, name, value) + +Alternatively, it is possible to set attributes by inserting +entries into :attr:`self.__dict__ <object.__dict__>` directly. How do I call a method defined in a base class from a derived class that extends it? |