Hello Chris, Christopher Baines skribis: > With the change to guile-json version 3, JSON objects are represented as hash > tables, rather than alists. The cpan importer uses assoc-ref* on a hash table, > so add an equivalent function for hash tables. > > * guix/import/utils.scm (hash-ref*): New procedure. [...] > In guile-json version 3, JSON objects are represented as hash tables, rather > than alists. I seems to me that this is adapting for Guile-JSON v1, not v3: in v3, JSON arrays map to Scheme vectors, and JSON dictionaries map to alists; JSON dictionaries used to map to hash tables in v1. Indeed, ‘tests/cpan.scm’ now fails for me: --8<---------------cut here---------------start------------->8--- actual-error: + (wrong-type-arg + "scm_hash_fn_get_handle" + "Wrong type argument in position ~A (expecting ~A): ~S" + (1 + "hash-table" + (("version" . "0.1") + ("author" . "Guix") + ("download_url" + . + "http://example.com/Foo-Bar-0.1.tar.gz") […] --8<---------------cut here---------------end--------------->8--- Could it be that you were testing this in an environment containing v1 and not v3? Sorry for not noticing earlier! Thanks, Ludo’.