I get the same error on my recent build:
./pre-inst-env guix import gnu grep
does something, but
./pre-inst-env guix import pypi readlike
Backtrace:
In ice-9/psyntax.scm:
989: 19 [scan ((define-module (guix scripts import ...) #:use-module ...)) ()
...]
279: 18 [scan ((#(syntax-object let # ...) (#) (# #) ...)) () ...]
In ice-9/eval.scm:
411: 17 [eval # ()]
In ice-9/boot-9.scm:
2951: 16 [define-module* (guix scripts import ...) #:filename ...]
2926: 15 [resolve-imports (((guix ui)) ((guix utils)) ((guix import pypi)) ...)]
2864: 14 [resolve-interface (guix import pypi) #:select ...]
2789: 13 [#<procedure 2379740 at ice-9/boot-9.scm:2777:4 (name #:optional
autoload version #:key ensure)> # ...]
3065: 12 [try-module-autoload (guix import pypi) #f]
2401: 11 [save-module-excursion #<procedure 3a405a0 at ice-9/boot-9.scm:3066:17
()>]
3085: 10 [#<procedure 3a405a0 at ice-9/boot-9.scm:3066:17 ()>]
In unknown file:
?: 9 [primitive-load-path "guix/import/pypi" ...]
In ice-9/eval.scm:
505: 8 [#<procedure 22c4600 at ice-9/eval.scm:499:4 (exp)> (define-module # #
...)]
In ice-9/psyntax.scm:
1106: 7 [expand-top-sequence ((define-module # # # ...)) () ((top)) ...]
989: 6 [scan ((define-module (guix import pypi) #:use-module ...)) () ...]
279: 5 [scan ((#(syntax-object let # ...) (#) (# #) ...)) () ...]
In ice-9/eval.scm:
411: 4 [eval # ()]
In ice-9/boot-9.scm:
2951: 3 [define-module* (guix import pypi) #:filename ...]
2926: 2 [resolve-imports ((#) (#) (#) (#) ...)]
2867: 1 [resolve-interface (json) #:select ...]
In unknown file:
?: 0 [scm-error misc-error #f "~A ~S" ("no code for module" (json)) #f]
ERROR: In procedure scm-error:
ERROR: no code for module (json)
