![]() So let’s have a look at how we can use this! The Star Wars API At runtime, these types are not checked, but you can use P圜harm or a command-line tool like mypy to check your code statically. If you’ve never used a type hint before: they allow you to mark what type a certain variable should be. The small example before could be rewritten M圜lass:Ī key difference is that type hints are actually required for data classes. For example, a init which accepted those arguments and assigned each to self. ![]() Most Python developers will have written many classes which looks like:ĭata classes help you by automatically generating dunder methods for simple cases. One of the most exciting new features is support for the dataclass decorator. There are many new things in Python 3.7: various character set improvements, postponed evaluation of annotations, and more. Python 3.7 is set to be released this summer, let’s have a sneak peek at some of the new features! If you’d like to play along at home with P圜harm, make sure you get P圜harm 2018.1 (or later if you’re reading this from the future).
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