From fd246fde8934f1461589df20efcf53ae1bd0e90d Mon Sep 17 00:00:00 2001
From: Mark Haines <mark.haines@matrix.org>
Date: Wed, 26 Aug 2015 12:59:02 +0100
Subject: [PATCH] Install tox locally if it wasn't already installed when
 running setup.py test

---
 setup.py | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index adc3316928..4a7b3c99aa 100755
--- a/setup.py
+++ b/setup.py
@@ -51,7 +51,16 @@ class Tox(Command):
 
     def run(self):
         #import here, cause outside the eggs aren't loaded
-        import tox
+        try:
+            import tox
+        except ImportError:
+            try:
+                self.distribution.fetch_build_eggs("tox")
+                import tox
+            except:
+                raise RuntimeError(
+                    "The tests need 'tox' to run. Please install 'tox'."
+                )
         import shlex
         args = self.tox_args
         if args:
@@ -75,6 +84,5 @@ setup(
     zip_safe=False,
     long_description=long_description,
     scripts=["synctl"] + glob.glob("scripts/*"),
-    tests_require=['tox'],
     cmdclass={'test': Tox},
 )