From 5417c92877c9893e23cb4023e4cebb332c6847f5 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Wed, 8 Aug 2018 22:24:13 +0200
Subject: [PATCH] gnu: python-flake8: Use INVOKE.

* gnu/packages/python.scm (python-flake8)[arguments]: Use INVOKE and always
return #T.
---
 gnu/packages/python.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 65daba4e4b..fc72bb25e1 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -5660,7 +5660,8 @@ complexity of Python source code.")
          (add-after 'install 'check
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (add-installed-pythonpath inputs outputs)
-            (zero? (system* "pytest" "-v")))))))
+            (invoke "pytest" "-v")
+            #t)))))
     (propagated-inputs
       `(("python-pycodestyle" ,python-pycodestyle)
         ("python-pyflakes" ,python-pyflakes)