itertools

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Allow MultiUnzip on Result<tuple, E> with behaviour like collect()?

1

I haven't found a way to make a pattern like this work: ``` let inputs = vec![(Ok(1), 2, 3), (Ok(4), 5, 6), (Ok(7), 8, 9)]; let (a, b, c): (Vec,...

shahn

Migrate to edition 2021

4

I noted 5 months ago that edition 2021 requires rustc 1.56+ so it's now possible. _Is there any reason to not update?_

Philippe-Cholet

Add `zip_clones`, zips an iterator with clones of a value

10

Similar to `iter.zip(repeat_n(val, n))' but does not require knowing n

barakugav

`Peekable` Adapters: `peeking_take_while`, `peek_map`, `peeking_fold_while` and `try_`

3

Note: I am primarily seeking feedback rather than proposing at this stage. ## Peekable As I see it [`peekable` (Existing in std)] facilitates two concepts, the ability to preview an...

G-M0N3Y-2503

Debian CI revealed that the test combinations_inexact_size_hints fails on 32-bit architectures with an integer overflow https://ci.debian.net/packages/r/rust-itertools/testing/i386/52667389/#S9 605s ---- combinations_inexact_size_hints stdout ---- 605s thread 'combinations_inexact_size_hints' panicked at /usr/src/rustc-1.80.1/library/core/src/iter/traits/accum.rs:149:1: 605s attempt to...

plugwash

I would like to have a method on "peekable" iterators with roughly the following signature and behavior similar to `PeekingNext::peeking_next`: ```rust fn peeking_next_map(&mut self, parse: impl FnOnce(&Self::Item) -> Option) ->...

ronnodas

Add `batch_by`, to allow grouping elements together by their size

2

Hey, I would like to propose adding a method `batch_by` (I don't know if this is the best name, however I'll use it here). * `batch_by` would allow you to...

JosephLenton

cons_tuples: (A, (B, C)) -> (A, B, C) doesn't work. Would it be possible to generalize cons_tuples to allow this?

4

Example from documentation `((A, B), C) -> (A, B, C)` [works pretty well](https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=c5c5186980e0d98a6d1046e75612b6cc)! ```rust use itertools::*; fn main() { let one_two = std::iter::once((1, 2)); let three = std::iter::once(3); dbg!(cons_tuples(izip!(one_two, three)).collect::());...

zekefast

Update some of itertools' dev-dependencies to their latest versions

2

It seems `itertools` has a few outdated development dependencies. I recommend updating them to their latest version, if for no other reason than you'll be running with the latest code....

LikeLakers2

Add `join(prefix, sep, suffix) -> String`

4

Add a `join()` operator with `prefix`, `sep` and `suffix`. `assert_eq!([1, 2, 3].iter().join(""), "");`

ronanM