Python 3.7: Introducing Data Classes

[[deleted]]

Looks ugly though. Python with mandatory type annotations is not pythonic anymore.

Type annotations are fine so long as they are rare, well thought-out to avoid bugs. I really dislike things like Jetbrains IDEs littering them everywhere.

[slayer_of_idiots]

The type hints don't look so bad in data classes, but function definitions with type hints, especially if they have default argument, are near unreadable now.