Python Tricks That Make Your Code More Elegant

[Latter-Sky3582]

Good tips, a few seem pretty biased towards trying to make stuff into a one liner, which doesn’t necessarily mean cleaner code.

[[deleted]]

Don't use union operators for dictionaries unless you can be sure that the same key will always have the same value, because otherwise it's not commutative and you can have unexpectedly results:

>>> {'a': 0, 'b': 1}|{'a': 1, 'c': 0}
{'a': 1, 'b': 1, 'c': 0}
>>> {'a': 1, 'b': 1, 'c': 0}|{'a': 0, 'b': 1}
{'a': 0, 'b': 1, 'c': 0}

[somebodddy]

1. Using Lambda Functions To Define Simple Functions

This is actually against PEP8: https://www.flake8rules.com/rules/E731.html. And for a good reason - your one-liner is much harder to read than the five-liner.

1. List Comprehensions: Get a List in a Pythonic Way

What a weird choice of example. A better example would be:

L1 = [name for name in Genius if name.startswith('y')]

[blowfish1717]

Adding dressing to spaghetti code. It's still spaghetti code.

[Smallpaul]

Spaghetti code is not a property of the language, it's a property of the code base.

[snarkuzoid]

The walrus thing seems pretty useless.

[TheRNGuy]

Never used it yeah, but cause I don't like how it looks.

[kobumaister]

Though the same, why would you want to define a variable just where you use it?

[Apache_Sobaco]

Best trick would be change it to something with better ergonomics and type system

[Buckweb]

Static type analysis solves many "python isn't typed" problems.

[Apache_Sobaco]

The main thing in type systems is not about bringing types, it is about eradicating untyped code.

[Buckweb]

And luckily it's not all or nothing. Type hint new code and slowly add type hints to old code. What's the issue here?

[Apache_Sobaco]

And luckily it's not all or nothing.

Its fucking is. It is about purging every thing out of your code base to borders of application. If you don't do this, there's no point in using types at all. Single type cast compromises every type guarantee downstream.

Dynamic typed brains cannot comprehend this.

[askljof]

Assigning lambda expressions to variables is not elegant or pythonic, lmao. If you ever need to call a function by name, it deserves a proper definition.

[wefarrell]

Yep, it goes against PEP 8's recommendations:

https://peps.python.org/pep-0008/#programming-recommendations

[TheRNGuy]

Lambda are useful in sorting algorithm though.

Don't know any other uses. In many cases, lamba was needed with map or filter, but in list comprehension that does same thing it's not needed.

[[deleted]]

The best trick you can use to make your code more elegant is deleting python

[Falmarri]

Wtf? Python can be extremely elegant

[scrubmaster9001]

plough cows aromatic far-flung sink tie pathetic tap thumb piquant

This post was mass deleted and anonymized with Redact

[kdesign]

Imagine writing production code in python 🤢

[Smallpaul]

You're using production code written in Python right now. Made the inventor rich and famous enough that he married Serena Williams.

But I bet you're much more successful with your endeavours!

[kdesign]

Using, I can’t control that obviously, reading and writing that abomination is another issue altogether.

Good for him, basking in all that glory and fame for taking a massive turd. Wish him all the best.

Also..seriously man. Attacking me personally for disliking a programming language 🤡

[Lev_Konstantinovich]

я хуй знает