Sven R. Kunze
srkunze at mail.de
Wed May 17 13:52:02 EDT 2017
On 17.05.2017 18:48, Ivan Levkivskyi wrote:
> from typing import NamedTuple
> class Foo(NamedTuple):
> """Foo is a very important class and
> you should totally use it.
> bar: int
> baz: int = 0
> def grand_total(self):
> return self.bar + self.baz
> typing.NamedTuple supports docstrings, user-defined methods, and
> default values.
I hope the second ': int' can be omitted because 0 already is an int.
This makes me wonder three things:
1) Michel, can newcomers differentiate between when to use ' : ' and
when to use ' = ' and a combination thereof?
2) There must be a lot of cornercases where people rewrite Foo to be a
normal class in the end, right?
3) If one doesn't need tuple-__dunder__ methods, a "normal" class would
even need 1 line less. (+ Stephan's second point)
So, this still leaves those missing __dunder__ magic methods doing the
right thing at the right time.
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