25/30: gnu: python-six: Use invoke instead of system*.

[Mark H. Weaver]

mhw pushed a commit to branch core-updates
in repository guix.

commit 9f68acc1682bc814fa978a6cdd10fca4ea2bc962
Author: Mark H Weaver <address@hidden>
Date:   Fri Mar 16 04:00:55 2018 -0400

    gnu: python-six: Use invoke instead of system*.
    
    * gnu/packages/python.scm (python-six)[arguments]: Use invoke.
---
 gnu/packages/python.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 8263993..cd940d6 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -1092,7 +1092,7 @@ from the Python interpreter, or as a small part of a 
larger application.")
        (modify-phases %standard-phases
          (replace 'check
            (lambda _
-             (zero? (system* "py.test" "-v")))))))
+             (invoke "py.test" "-v"))))))
     (native-inputs
      `(("python-py" ,python-py)
        ("python-pytest" ,python-pytest-bootstrap)))