Re: [racket-users] Re: machine and network outage at Northeastern

[Shu-Hung You]

The PLaneT website (https://planet.racket-lang.org/) is currently
unreachable. The error message is ERR_CONNECTION_REFUSED.

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Re: [racket-users] Show & Tell - Xiden Documentation Revamp

[Sage Gerard]

Yikes, sorry about that. That's what I get for cross-posting HTML from another 
dark mode app. Looked the same to me. :)

Last try.

I did a pretty sweeping edit pass on Xiden's documentation. I'm really proud of 
it, and I'd like to show it off. 
https://docs.racket-lang.org/xiden-index/index.html?q=xiden%20documentation

This revision of the docs uses a Guide [-> Exercises] -> Reference reading 
flow. It allowed me to delete a lot of extra text, but I don't know if it 
became easier or harder to understand.

Could I get some feedback on just the guide and the transition to the 
exercises? What do you find clear/confusing? Did the examples work on your 
machine? etc.

On 7/2/21 6:02 PM, Sage Gerard wrote:

> Hey folks,
>
> I did a pretty sweeping edit pass on Xiden's documentation. I'm really proud 
> of it, and I'd like to show it off. 
> https://docs.racket-lang.org/xiden-index/index.html?q=xiden%20documentation 
> This revision of the docs uses a Guide [-> Exercises] -> Reference reading 
> flow. It allowed me to delete a lot of extra text, but I don't know if it 
> became easier or harder to understand. Could I get some feedback on just the 
> guide and the transition to the exercises? What do you find clear/confusing? 
> Did the examples work on your machine? etc.

--
~slg

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[racket-users] Show & Tell - Xiden Documentation Revamp

[Sage Gerard]

Hey folks,

I did a pretty sweeping edit pass on Xiden's documentation. I'm really proud of 
it, and I'd like to show it off. 
https://docs.racket-lang.org/xiden-index/index.html?q=xiden%20documentation 
This revision of the docs uses a Guide [-> Exercises] -> Reference reading 
flow. It allowed me to delete a lot of extra text, but I don't know if it 
became easier or harder to understand. Could I get some feedback on just the 
guide and the transition to the exercises? What do you find clear/confusing? 
Did the examples work on your machine? etc.

--
~slg

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[racket-users] Differences between execution in DrRacket and Command Line

[Rhazes Spell]

Hello-
I have been using Racket for about 18 months for personal projects and 
teaching. I have been doing all of my work in DrRacket but I wanted to 
interact with a module that I wrote on the interactive command line this 
morning. I am getting an error while using the command line that I am not 
getting in the Dr.Racket Interactions window.

This is the code that runs fine in the Interactions window of DrRacket:
(input-financial-data) deserializes the data properly and populates the 
list variable that I am using correctly. The lines of code in the module 
are:

...
(define data (input-financial-data data-file))
(printf "~a data records read~n" (length data))
(define closed-trades (filter trade-closed? data))
...

On the command line when running:
$> racket -i
...
> (enter! "year-1-analysis.rkt")
I get an error while trying to read a file of serialized structs. The error 
is:

given value instantiates a different structure type with the same name
  expected: trade?
  given: (trade #1=(date* 0 0 0 21 04 2017 3 294 #t -25200 0 "PDT") 'PYPL 
"simInvest" (list (transaction 2978996 #1# "simInvest" 'PYPL 'BOUGHT 30 
43.70) (transaction 29556891965 (date* 0 0 0 23 04 2017 3 294 #t -25200 0 
"PDT") "simInvest" 'PYPL 'B...


My question is what are the differences between using a module in DrRacket 
versus on the command line? Thank you in advance for your assistance.

Cheers,
r..

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[racket-users] Racket News - Issue 52

[Paulo Matos]

Issue 52 of RN is here: 
https://racket-news.com/2021/07/racket-news-issue-52.html

Enjoy!

Paulo Matos

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Re: [racket-users] raco pkg migrate

[Laurent]

I usually use this script:
https://gist.github.com/Metaxal/13c4effc483c5ef9f5797ace4950f97a
The only drawback I've found so far for my own use cases (unix-wide
distribution) is that it won't migrate between snapshots and releases (but
it will migrate between snapshots and snapshots, and between releases and
releases).

On Fri, Jul 2, 2021 at 4:21 AM Curtis Dutton  wrote:

> after I install the newest racket package on my linux servers I always
> need to run raco pkg migrate to reinstall dependant packages. trouble is I
> can never figure out the version name of the previous install. Is there a
> raco pkg migrate command that can just migrate the packages from the latest
> previously installed version?
>
> Ideally I'd like to automate that so when I apt-get upgrade the packages
> are migrated for me.
>
> Thanks,
> Curt
>
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> 
> .
>

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