* Zaur Shibzukhov <szport@gmail.com> [2015-03-17 22:29:07 +0300]:
Yes... But I expected that dict constructor will use `__getitem__` or `items` method of MyDict instance in order to retrieve items of the MyDict instance during construction of the dict instance... Instead it interpreted MyDict instance as the dict instance during construction of new dict.This exactly caused my confusion.
Subclassing builtins is always a recipe for trouble, because the C implementation doesn't necessarily call your Python methods. You should probably use collections.UserDict or collections.abc.(Mutable)Mapping instead: https://docs.python.org/3/library/collections.html#collections.UserDict https://docs.python.org/3/library/collections.abc.html#collections.abc.Mappi... Florian -- http://www.the-compiler.org | me@the-compiler.org (Mail/XMPP) GPG: 916E B0C8 FD55 A072 | http://the-compiler.org/pubkey.asc I love long mails! | http://email.is-not-s.ms/