@[email protected] to [email protected]English • 14 days agoPython Performance: Why 'if not list' is 2x Faster Than Using len()blog.codingconfessions.comexternal-linkmessage-square87fedilinkarrow-up1123arrow-down112cross-posted to: [email protected]
arrow-up1111arrow-down1external-linkPython Performance: Why 'if not list' is 2x Faster Than Using len()blog.codingconfessions.com@[email protected] to [email protected]English • 14 days agomessage-square87fedilinkcross-posted to: [email protected]
minus-square@[email protected]linkfedilinkEnglish1•14 days agoOk, help a noob out. What is the difference between a sequence and an iterable? Is a sequence immutable, like a tuple?
minus-square@[email protected]linkfedilinkEnglish1•14 days agoAn iterable is just something that can be iterated over, like range(10), or [1, 2, 3]. A sequence on the other hand is a Collection that is reversible. https://docs.python.org/3/library/collections.abc.html#collections-abstract-base-classes
minus-square@[email protected]linkfedilinkEnglish1•14 days agoI know what an iterable is. But I am talking about Type[Iterable], which iirc does not obey falsey eval when empty.
minus-square@[email protected]linkfedilinkEnglish1•edit-214 days agothing: Sequence[Any] iirc is iterable, indexable, and reversible. thing: Iterable[Any] only guarantees that its iterable - and note that iterating can sometimes have the effect of consuming the iterable (e.g. when working with streaming interfaces)
Ok, help a noob out. What is the difference between a sequence and an iterable? Is a sequence immutable, like a tuple?
An iterable is just something that can be iterated over, like
range(10), or[1, 2, 3].A sequence on the other hand is a Collection that is reversible.
https://docs.python.org/3/library/collections.abc.html#collections-abstract-base-classes
I know what an iterable is. But I am talking about
Type[Iterable], which iirc does not obey falsey eval when empty.thing: Sequence[Any]iirc is iterable, indexable, and reversible.thing: Iterable[Any]only guarantees that its iterable - and note that iterating can sometimes have the effect of consuming the iterable (e.g. when working with streaming interfaces)