import: pypi: Ignore pypi-ignored-inputs.

* guix/import/pypi.scm (pypi-ignored-inputs): New variable.
  (compute-inputs): Use it.

* tests/pypi.scm (parse-requires.txt): Add ignored input to test the
  feature.

* guix/lint.scm (check-inputs-should-be-native): Adapt list.
  (check-inputs-should-not-be-an-input-at-all): Use pypi-ignored-list.

Change-Id: I297793b71f9ffdfbe7cc4e883777f8823941adf0
Modified-by: Sharlatan Hellseher <sharlatanus@gmail.com>
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/tests/import/pypi.scm b/tests/import/pypi.scm
index 59d0bfc2104..8da15edcd98 100644
--- a/tests/import/pypi.scm
+++ b/tests/import/pypi.scm
@@ -97,6 +97,7 @@ bar != 2
 
 [test]
 pytest (>=2.5.0)
+pytest-cov  # read but ignored
 ")
 
 ;; Beaker contains only optional dependencies.
@@ -258,7 +259,7 @@ files specified by SPECS.  Return its file name."
   (map specification->requirement-name test-specifications))
 
 (test-equal "parse-requires.txt"
-  (list '("foo" "bar") '("pytest"))
+  (list '("foo" "bar") '("pytest" "pytest-cov"))
   (mock ((ice-9 ports) call-with-input-file
          call-with-input-string)
         (parse-requires.txt test-requires.txt)))