The recursive pypi importer prints a backtrace when a package does not exist:
--8<---------------cut here---------------start------------->8--- ./pre-inst-env guix import pypi -r doesnotexist following redirection to `https://pypi.org/pypi/doesnotexist/json/'... Backtrace: In ice-9/boot-9.scm: 1752:10 11 (with-exception-handler _ _ #:unwind? _ #:unwind-for-type _) In unknown file: 10 (apply-smob/0 #<thunk 7fe2ed3202e0>) In ice-9/boot-9.scm: 724:2 9 (call-with-prompt _ _ #<procedure default-prompt-handler (k proc)>) In ice-9/eval.scm: 619:8 8 (_ #(#(#<directory (guile-user) 7fe2ed325c80>))) In guix/ui.scm: 2229:7 7 (run-guix . _) 2192:10 6 (run-guix-command _ . _) In guix/scripts/import.scm: 124:11 5 (guix-import . _) In ice-9/boot-9.scm: 1752:10 4 (with-exception-handler _ _ #:unwind? _ #:unwind-for-type _) In guix/scripts/import/pypi.scm: 97:21 3 (_) In guix/import/utils.scm: 507:27 2 (recursive-import "doesnotexist" #:repo->guix-package _ #:guix-name _ #:version _ #:repo _) 497:33 1 (lookup-node "doesnotexist" #f) In ice-9/boot-9.scm: 1685:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1685:16: In procedure raise-exception: Wrong number of values returned to continuation (expected 2) --8<---------------cut here---------------end--------------->8--- The non-recursive importer does a better job here: --8<---------------cut here---------------start------------->8--- ./pre-inst-env guix import pypi doesnotexist following redirection to `https://pypi.org/pypi/doesnotexist/json/'... guix import: error: failed to download meta-data for package 'doesnotexist' --8<---------------cut here---------------end--------------->8--- -- Ricardo
