Comments by "Dr Gamma D" (@DrDeuteron) on "5 Useful Dunder Methods In Python" video.

  1. one common pythonic thing is, repr(instance) should return a string so that: >>>instance == eval(repr(instance)) is True, so something _like_: return f"{type(self).___name__}(}" + ", ".join(f'{k}={v}' for k, v in self.___dict___.items()) + ")" Also: note that these dunder methods are strongly typed and MUST return a str. You can also use the "dunder module" static class attribute to assist.
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  2.  @nibblrrr7124  don't forget unicode() from 2x, but those backward quotes `foo` -> repr(foo) were weird. Though emacs knew about them,
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  3. What’s great about python is that you can test it in an interpreter about as fast as you can answer the question.
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  4. Every thing is a first class object in python
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  5. Do you mean the annotations? Like: Twopi : float = three: int + 0.1 : float + 41: int / pow(10: int, 3: int) ? Yes. And telling ppl dunder init returns None, I just can’t. Of dunder str returns str. Same for int, float, complex, etc….
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  6.  @MarianoBustos-i1f  oh. Yes, I turn those off all the time, esp when I'm writing a line that depends the prior line... ...it opens up and hides what I want to build off of and tells me a bunch of stuff I don't need to know.
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  7. For me, I love overloading operators, until I want to see where something happens in the code.
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  8. Luckily type hints don’t matter
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  9. Since which version? And is it pronounced bang r? Does anyone remember back quotes being assign to repr?
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  10. its dunder getitem, not get_item.
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  11. No, but there is a mifflin
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  12. Doesn’t type(self) work too?
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