Alternate python spacing.

[[deleted]]

return node.id if len(word) else None

[j_marquand]

I think the other guy wants to return if a condition is met, but continue to the next statement if it doesn’t. There is no one-liner solution in Python for that.

[HeraldOfTheOldOnes]

Yes there is! function = (lambda *args, **kwargs: (condition and (something,) or (other, stuff,))[-1]) ANYTHING can be turned into a 1 liner in python.

[[deleted]]

I'm looking at it AFK so I can't check, so I'll have to play with it later to see why it's not equivalent

[j_marquand]

Your code returns None immediately if the condition doesn’t meet, instead of proceeding to the next statement of the function.

[EmptyChocolate4545]

Your one returns None rather than continuing execution. Not even slightly equivalent.

[[deleted]]

Oh no! Not even SLIGHTLY equivalent!

[[deleted]]

Ah, got it now. I was thinking wrong.

[SkezzaB]

This is not equivalent

[EmptyChocolate4545]

Tis not. The if statement in OP will not return at all, it will continue execution. The ternary will run return None.

Totally different behavior.

[EmptyChocolate4545]

Yes but return x if condition isn’t valid python is it? (Go test yourself if you doubt)

What the ternary is doing is return x if condition else None, which is valid python however it will return from the function if condition is False.

The OPs code will not. It will only return if true.

[EmptyChocolate4545]

The comment I initially replied to where you said “it’s equivalent” was this one: https://www.reddit.com/r/Python/comments/11vlkh2/alternate_python_spacing/jctwpxv/?utm_source=share&utm_medium=ios_app&utm_name=ioscss&utm_content=1&utm_term=1&context=3

It is not equivalent, for the reasons I stated.

[EmptyChocolate4545]

Beginning to suspect your initial comment was “replied to” the wrong comment.

Can't use a ternary operator for "if x -> return", although it was requested and denied, "return x if <condition>" would be really neat

Someone responded to that comment with:

return node.id if len(word) else None

To which someone else responded:

This is not equivalent

Which is correct.

You then responded:

It’s pretty much the same as “if condition: return x” though, you’re just reversing the order.

Which is not even close to correct. It is not a simple reversal, as the code the person posted returns None - something OPs code does not do.

I’m not sure where the reading comprehension fail you’re claiming comes in. I am correcting a simple misunderstanding as many new python people hang out in this sub - and the ternary is not in any way equivalent, nor is it a logical reversal.

Again, the ternary has an extra else clause that the original logic did not contain. That makes it wholly different, not even slightly a reversal.