Python’s profiler, cProfile, generates reports that show which functions take up the most time in a given Python program. By default, Cython code doesn’t show up in those reports.

You could annotate both x and y as int. And you can annotate the return value from bar as a string. But how can you annotate the return value from foo? Given that, as shown above, functions are of ...

Customize Python dataclass fields with the field function The default way dataclasses work should be okay for the majority of use cases. Sometimes, though, you need to fine-tune how the fields in ...