Python’s disdain for the industry standard is wild. Every other language made in the last 20 years has proper filtering that doesn’t require collecting the results back into a list after filtering like Java (granted it’s even more verbose in Java but that’s a low bar).
If Python had modern lambdas and filter was written in an inclusion or parametric polymorphic way, then you could write:
which doesn’t do the exact same thing.
Honestly, this list comprehension is much faster to read and quite easy to understand.
I think we could rename the “result” variable “x” or “res” and it would be less confusing though.
I think that Python has a bit of a ‘Microsoft Word’ thing on the go. You know how your own docs are completely editable and print fine, but everyone else’s are a complete fucking disaster and pressing a single key will screw up the formatting of the whole document? Your own Python code is full of sensible idioms and pragmatic naming conventions, but everyone else’s was plainly written while on mushrooms.
In Ruby, 0 and “” is truthy, so this would be a little different than the Python interpretation. You could filter with #select, but you’d typically write your code around this instead.
Yup :) Everything in Ruby inherits Object, too. It’s a really neat language, and when you get accustomed to it, you might wonder why some other languages aren’t written like it.
For the 0 value being truthy, consider that Ruby is a dynamic language. Imagine if you asked a user how many motorcycles they own. If they answer, you’ll have an Integer. If they don’t, you’ll have nil, from NilClass. 0 is just as valid of an answer as 2, so you can do something like this:
The image you've uploaded is a humorous take on a programming practice common among Python developers. It shows a list comprehension, which is a concise way to create lists in Python. The joke is that nobody prompted the Python programmers to use a complex or sophisticated feature, yet they are using it anyway, which implies that Python programmers tend to use list comprehensions frequently and perhaps even when they are not strictly necessary. List comprehensions are a popular feature in Python because they can make the code more readable and expressive, and this meme plays on the idea that Python programmers might be eager to use them at every opportunity.
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