It doesn't actually build for me.

I made the following changes, but it still doesn't build.  Did it build for you?

diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index 6518d841c8..adb18cc7d0 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -2110,6 +2110,7 @@ pretty printer and a tree visitor.")
     (propagated-inputs
       `(("python-aniso8601" ,python-aniso8601)
         ("python-flask" ,python-flask)
+        ("python-jsonschema" ,python-jsonschema)
         ("python-pycrypto" ,python-pycrypto)
         ("python-pytz" ,python-pytz)))
     (native-inputs
@@ -2117,7 +2118,9 @@ pretty printer and a tree visitor.")
         ("python-blinker" ,python-blinker)
         ("python-mock" ,python-mock) ; For tests
         ("python-nose" ,python-nose) ; For tests
-        ("python-sphinx" ,python-sphinx)))
+        ("python-pytest-sugar" ,python-pytest-sugar) ; For tests
+        ("python-sphinx" ,python-sphinx)
+        ("python-tzlocal" ,python-tzlocal))) ; For tests
     (home-page
       "https://www.github.com/flask-restful/flask-restful/")
     (synopsis