what is a boolean trap? (programming antipattern) (beginner

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what is a boolean trap? (programming antipattern) (beginner - intermediate) anthony explains

Рет қаралды 4,632

Күн бұрын

today I talk about a boolean trap, how you can spot one in code review, and how you can fix the problem using a few python features!
- all parameter types: • all python argument / ...
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Пікірлер: 17

@StopThatShitPls 3 жыл бұрын

Why not just define two functions - pop_first and pop_last?

@anthonywritescode 3 жыл бұрын

that would work well too!

@MagnusAnand 3 жыл бұрын

@@anthonywritescode Here you have some solutions adamj.eu/tech/2021/07/10/python-type-hints-how-to-avoid-the-boolean-trap/

@jurgengmach4636 Жыл бұрын

I am waiting for the sequel: "what is a troolean trap?" 🤣

@420_gunna 2 жыл бұрын

I haven't seen someone use the enum.Enum constructor like that before -- I usually see people write a class that inherits from Enum, then defines a bunch of class attributes like Tomato = "TOMATO", Lettuce = "LETTUCE", etc. Is using the enum.Enum primary constructor directly (like enum.Enum("Tomato") the same as writing a class that inherits from Enum with class attributes like Tomato = "Tomato"? I really need to look at how enums actually work under the hood :)

@anthonywritescode 2 жыл бұрын

it's a bit magical -- acts as both a metaclass and a callable

@teslainvestah5003 2 жыл бұрын

I'd assume dct.popitem(True) would pop (3,4). Because if a method called popitem takes any argument, it should be an integer index. In my projects I just have unlimited line length, and never use positional arguments for anything unless some module (often pygame) forces me to.

@anthonywritescode 2 жыл бұрын

True is an integer, checkmate athiests

@MagnusAnand 3 жыл бұрын

cool video

@C0pernicus 8 ай бұрын

Is there an advantage to using an Enum over typing.Literal?

@marco_gorelli 2 жыл бұрын

Do you know if there exists a tool to detect boolean traps? e.g. flake8 extension, or even a tool to re-write them. If not, I'm tempted to try writing one

@anthonywritescode 2 жыл бұрын

not that I know of! but it'd be pretty easy to detect if the codebase uses type extensions (non-namedonly bool parameter) or a call which takes a boolean literal in a positional argument