I propose to add a get_deep(*args, default=_sentinel) method to dict.
It can accept a single argument, that must be an iterable, or multiple
arguments.
The first element must be a key of the dict. If there's not a second
element, the value is returned. If it's present, it tries to use it as
an argument for the eventual __getitem__() of the value object, and so
on.
In this process, if a KeyError, an IndexError or a TypeError is
raised, if default is set its value is returned, otherwise the
exception will be raised.
Example:
d = {1: [42]}
d.get_deep(1, 0)
# 42
d.get_deep(range(3), default=1981)
# 1981
d.get_deep((1, 1))
# IndexError: list index out of range
_______________________________________________
Python-ideas mailing list -- python-ideas@python.org
To unsubscribe send an email to python-ideas-le...@python.org
https://mail.python.org/mailman3/lists/python-ideas.python.org/
Message archived at
https://mail.python.org/archives/list/python-ideas@python.org/message/O53OTTDKWPQ7HZCODZSM7ZVNAQ5HVZG6/
Code of Conduct: http://python.org/psf/codeofconduct/
