# Transducers for Racket **URL:** \ **Category:** General\ **Created:** [March 3, 2025, 10:57am UTC](https://racket.discourse.group/t/transducers-for-racket/3601 "2025-03-03T10:57:44Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![damien\_mattei](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/damien_mattei/32/2706_2.png) [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Post date:** [March 3, 2025, 10:57am UTC](https://racket.discourse.group/t/transducers-for-racket/3601/1 "2025-03-03T10:57:45Z")
Hi, i make available public a package for Racket : SRFI 171 Transducers. I'm NOT THE AUTHOR (i had contacted him by mail many years ago with no answer) of the code of Transducers. I have just ported the code (3 years ago , very few changes) to Racket from Guile and packaged it in the Racket system package : > **[transducers-srfi-171](https://pkgs.racket-lang.org/package/transducers-srfi-171)** > > Transducers SRFI 171 It was not public, but as i saw some interest in transducers (in the Qi project for example) i made it available public. If someone want to clone it in his own repository (Racket package requires to have a github account with public repository) i will be glad to be discharged of that. I had tested transducers for Guile and Racket in the hope of speeding up some code many years ago but did not really get significant results. I even forget what are transducers about 😅. Damien ---
**Author:** ![benknoble](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/benknoble/32/16_2.png) [@benknoble](https://racket.discourse.group/u/benknoble)\ **Post date:** [March 3, 2025, 5:54pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/2 "2025-03-03T17:54:02Z")
One nit: you can create Racket packages without GitHub. It's just convenient. I do wonder whether the package server supports other forges already (SourceHut and others came up recently in the Discord)? ---
**Author:** ![shawnw](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/shawnw/32/1031_2.png) [@shawnw](https://racket.discourse.group/u/shawnw)\ **Post date:** [March 3, 2025, 6:34pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/3 "2025-03-03T18:34:02Z")
I also have a Racket version of SRFI-171 in my [extra-srfi-libs package](https://docs.racket-lang.org/extra-srfi-libs/index.html) fwiw. Includes support for a couple of extra Racket datatypes. ---
**Author:** ![damien\_mattei](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/damien_mattei/32/2706_2.png) [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Post date:** [March 3, 2025, 7:20pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/4 "2025-03-03T19:20:22Z")
by default it seems to be proposed only github ---
**Author:** ![damien\_mattei](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/damien_mattei/32/2706_2.png) [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Post date:** [March 3, 2025, 9:01pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/5 "2025-03-03T21:01:33Z")
it seems there is also transducers in this package: > **[rebellion](https://pkgs.racket-lang.org/package/rebellion)** > > A collection of infrastructure libraries ---
**Author:** ![benknoble](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/benknoble/32/16_2.png) [@benknoble](https://racket.discourse.group/u/benknoble)\ **Post date:** [March 4, 2025, 2:49pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/6 "2025-03-04T14:49:44Z")
Perhaps I misremembered; I thought the PLT server would accept any package URLs that worked à la [the docs](https://docs.racket-lang.org/pkg/getting-started.html#%28part._.What_is_a_.Package_%29). ---
**Author:** ![samth](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/samth/32/3_2.png) [@samth](https://racket.discourse.group/u/samth)\ **Post date:** [March 4, 2025, 3:17pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/7 "2025-03-04T15:17:21Z")
You can specify anything that the docs indicate (that's what the docs are about). There is no restriction to github. ---
**Author:** ![damien\_mattei](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/damien_mattei/32/2706_2.png) [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Post date:** [March 4, 2025, 4:55pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/8 "2025-03-04T16:55:51Z")
perheaps we misunderstand what about we talk, i mean when i'm connected to [https://pkgs.racket-lang.org/](https://pkgs.racket-lang.org/) i only have those options : github and simple URL (i forget to mention this but i do not know how simple URL works) ,see screenshot : ![image](https://global.discourse-cdn.com/free1/uploads/racket/original/2X/9/9fbd7000a6efddbbc4da053a2444f37abad6b188.jpeg) ---
**Author:** ![samth](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/samth/32/3_2.png) [@samth](https://racket.discourse.group/u/samth)\ **Post date:** [March 4, 2025, 10:05pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/9 "2025-03-04T22:05:23Z")
That says "Git repository" (not github) and the entire text field is editable. ---
**Author:** ![damien\_mattei](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/damien_mattei/32/2706_2.png) [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Post date:** [March 4, 2025, 11:02pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/10 "2025-03-04T23:02:14Z")
ah yes, when editing one can change it to gitlab for example, but i haven't such an account. ---
**Author:** ![notjack](https://avatars.discourse-cdn.com/v4/letter/n/e47774/32.png) [@notjack](https://racket.discourse.group/u/notjack)\ **Post date:** [March 5, 2025, 12:30am UTC](https://racket.discourse.group/t/transducers-for-racket/3601/11 "2025-03-05T00:30:16Z")
That one's mine, yeah. Always happy to see more interest in transducers. ---
**Author:** ![damien\_mattei](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/damien_mattei/32/2706_2.png) [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Post date:** [March 5, 2025, 9:47am UTC](https://racket.discourse.group/t/transducers-for-racket/3601/12 "2025-03-05T09:47:28Z")
it was perheaps not already transducer libray for Racket: i just made some test with transducers to optimize code few years ago but i no more use it,it is now commented in code: > It was a port from a Guile Scheme code to Racket code and as the original transducers code was for guile hosted on sourcehut (there is an automatic process to clone it to github and i was not sure i could have clone it and host it on sourcehut for racket packager) if i remember well and the original author was asking for porting it to racket as he had no skill for that and i needed a transducer package for racket so i ported it. It was quite easy as i knew a bit how the racket package system worked.But i keeped the code private on github many years. I see there is some download on github since i had made it public: ![transducers](https://global.discourse-cdn.com/free1/uploads/racket/original/2X/d/ddb9853ada4dc0a26d04680fb06c3abd824b1ba8.png) that is strange because the easy way to install it is from racket package system. And the more important part of downloads should be from racket package. But i did not know any way for an user to have any statistic on download on the racket package system , this could be a good idea to have such a feature for Racket package. I mean that at least the creator of a package could know how many download of his library has happened each day. I have a few packages for Racket but i only know the number of download via github, only administrator of the site of Racket system packager can know that.... ---
**Author:** ![samth](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/samth/32/3_2.png) [@samth](https://racket.discourse.group/u/samth)\ **Post date:** [March 5, 2025, 4:27pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/13 "2025-03-05T16:27:50Z")
You can change it to anything you want, you don't need to use gitlab. How do you host the code you want to make into a package? ---
**Author:** ![damien\_mattei](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/damien_mattei/32/2706_2.png) [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Post date:** [March 5, 2025, 6:29pm UTC](https://racket.discourse.group/t/transducers-for-racket/3601/14 "2025-03-05T18:29:43Z")
all is already good.all my code i want to share for Racket are already interconnected between github and Racket-package.