* gnu/packages/package-management.scm (guix-jupyter)[native-inputs]:
Avoid 'specification->package'.
("pkg-config" ,pkg-config)
;; For testing.
- ("jupyter" ,(specification->package "jupyter"))
- ("python-ipython" ,(specification->package "python-ipython"))
- ("python-ipykernel" ,(specification->package "python-ipykernel"))))
+ ("jupyter" ,jupyter)
+ ("python-ipython" ,python-ipython)
+ ("python-ipykernel" ,python-ipykernel)))
(inputs
`(("guix" ,guix)
("guile" ,guile-2.2)))