How to define [] for a class in Python?

Question

It seems to me that this question has already been asked and answered, but I could not find anything on the topic, so excuse me if this is so. I want to determine the behavior of the brackets [] when applied to a class, similar to the construction def []=()in ruby, so that calling Python obj['foo']will actually call some method [](self, what). How can i do this?

Answer 1

All of this in the documents __getitem__.

Answer 2

This is done using __getitem___in Python.

Here is a list of all the operators: http://docs.python.org/library/operator.html

Answer 3

__getitem__(key) __setitem__(key, value)

Answer 4

http://docs.python.org/reference/datamodel.html

3.4 , Python. , ,

__getitem__()