Hi All.

The Python library I have been working on is taking form.

Right now I am moving it to Github, but I have run into a “can’t see the forrest for the trees” problem.

I have split the package pyffi into smaller packages: pyffi-lib and pyffi-doc (and later pyffi-test). The info file for pyffi states it is an multi collection package. Now, in pyffi-lib I have a folder python and an info file which says pyffi-lib is a multi collection package. In python/ the info file has (define collection "python").

I expected this would create a collection python that I could require with (require python). But I get an error: Users/soegaard/tmp/test-pyffi.rkt:2:9: collection not found for module path: python collection: "python" in collection directories: /Users/soegaard/Library/Racket/8.4/collects /Applications/Racket v8.4/collects/ ... [180 additional linked and package directories] Any help is appreciated.

https://github.com/soegaard/pyffi

1. Based on https://github.com/lexi-lambda/racket-collections/tree/master/collections-lib, I don’t think you need (define collection "python")

1. Your package is going to conflict with https://pkgs.racket-lang.org/package/python

1. info.rkt requires ffi, which is not yet registered

1. pyfii-tests doesn’t exist

Not a solution to your problem (sorry), but rather a curious question.

Why split up the package into pyffi-lib and pyffi-doc and pyffi-test? I see lots of packages do that and I find it a bit frustrating (so there has to be a good reason for it, right?).

Example: if I go to (assuming registered) https://pkgs.racket-lang.org/package/pyffi, there’s no nice “Documentation” button I can use to browse it. Instead, I have to try and navigate around and stumble upon pyffi-doc, which is where it is.

And I can’t remember if the package server spuriously shows that pyffi is missing documentation and tests since those are actually in other packages?

@massung if you install Minimal Racket, you will not have a great time installing most packages, since it will transitively install Scribble, RackUnit, etc.

By splitting the package to -lib, -doc, etc, specifying the -lib variant as a dependency won’t pull in Scribble and RackUnit (which if I recall correctly could pull in heavier stuff like the GUI framework)

ok. feels like something that should be solved another way, but I get it. Thanks!

Totally! There’s already a concept of binary package, which “compiles” a regular package so that it doesn’t need any build-time dependencies. Unfortunately, it only works for the current release

@sorawee 1. As you probably guessed, I can’t figure out why the python collection doesn’t show up, so I tried without too. 2. Thanks. I search the docs for python and didn’t find anything. Should have tried http://pkgs.racket-lang.org\|pkgs.racket-lang.org instead. 3. Yes - one thing at a time :slightly_smiling_face: 4. Same.

I’ll begin renaming python to pyffi and see if things magically works (since the package name and collection name will be the same.

@sorawee I have fixed 1, 2, 3, and 4. But I get the same error: % cat ~/tmp/test-pyffi.rkt && racket84 ~/tmp/test-pyffi.rkt #lang racket (require pyffi) /Users/soegaard/tmp/test-pyffi.rkt:2:9: cannot open module file module path: pyffi path: /Users/soegaard/Dropbox/GitHub/pyffi/main.rkt system error: no such file or directory; rkt_err=3 location...: /Users/soegaard/tmp/test-pyffi.rkt:2:9

I used raco84 pkg update pyffi/ after the changes.

What I’m confused is, you said you don’t know that the package python is a thing

But then python is one of your deps.

I know of Pedros #lang python . There shouldn’t be a dependcy though. I experimented with something in his package a long time ago. Have I forgotten to remove something?

In pyffi-lib’s info.rkt

Before I had pyffi-lib/python and now I renamed the folder to pyffi but forgot to update deps. Note it says "python" not python.

But deps is a list of package sources (which are strings).

So (define deps '(python)) is in fact wrong. And (define deps '("python")) is correct, but it refers to the package on the package catalog, not a local collection.

True. Rereading the error message: path: /Users/soegaard/Dropbox/GitHub/pyffi/main.rkt system error: no such file or directory; rkt_err=3 If I add a “main.rkt” to pyffi/pyffi that just reexports everything from pyffi-lib I think it’ll work.

Hmm. I think the issue is that I am using raco pkg wrong. The folder pyffi has subfolders" pyffi/ pyffi/ pyffi-lib/ pyffi-doc/ The root folder pyffi/ holds thre packages.

But the error mentions pyffi/main.rkt instead of pyffi/pyffi/main.rkt to it suggest that my system thinks the root folder is a collection.

I would raco pkg remove pyffi and only raco pkg install ./pyffi-lib.

pyffi and pyffi-doc are not important for testing the functionality.

% raco84 pkg install ./pyffi-lib The following uninstalled packages are listed as dependencies of pyffi-lib: pyffi

You should not have pyffi as a dependency of pyffi-lib, no?

I’m confused

I thought pyffi is like a dummy package that would install pyffi-lib, pyffi-doc, etc.

You are not confused. I did have “pyffi” as a dependency.

Yep. Now it works!

Thanks so much for the help.

I need an raco pkg install-multi folder/ feature :slightly_smiling_face:

I think raco pkg install folder/*/ would work

assuming you use a shell that has * expansion.

Maybe - but if I can’t find it by scanning raco pkg install --help I won’t see it.

If the package names look like a local paths (which ./folder/* will do) then raco pkg install will link them all.

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