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today I show a little quirk of `repr` and how it doesn't quite act like `__repr__`! - what is repr? playlist: ... a continuation to our "maybe CoW can actually work in today I talk about one of the ways to introduce magic in today I talk about __slots__ and __dict__ and how they relate to today I to into detail about data descriptors, non-data descriptors, what the point of them is, as well as a quick example! playlist: ... today I talk about what it means to be "hashable" and how to define your own `__hash__` method (or disable it!) playlist: ...
today I talk about the difference between len(x) and x.__len__() (as well as other similar functions!) playlist: ... today we talk about mypy's "implicit optional" and why I think it's better to not use it! - what is Optional: ... today I talk about the singleton pattern and a bunch of different ways to implement it in today I talk about the decorator for typing and how it can be used to signal typed-dispatch to a type checker! today we introduce another typing / mypy concept: generics! I show a few examples of how to write generic functions and generic ... today I walk through what the `staticmethod` and `classmethod` decorators do -- I also show roughly how to implement them as ...
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today I walk through why I banned `assertRaises` in tests at work as well as an alternative that doesn't have this pitfall ... probably the most asked question on my channel -- what are those funny @ signs! I
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python: why object() in this code? (intermediate) anthony explains #243
repr(...) doesn't work the way you expect (intermediate - advanced) anthony explains #421
refcount ONE BILLION? (immortal objects, PEP 683) (advanced) anthony explains #498
python's optimization mode is mostly useless (intermediate) anthony explains #523
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Last Updated: June 2, 2026
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