Add oldest supported tox version to contributing docs

Better fix for #1337
scrapy · Dec 30, 2015 · 5d10d6dcc1a6944fd4e3fc435aee23b6e2d6bf50 · 5d10d6d
1 parent 85c980e
commit 5d10d6dcc1a6944fd4e3fc435aee23b6e2d6bf50
Unified Split

Showing with 8 additions and 0 deletions.

+8 −0 docs/contributing.rst
diff --git a/docs/contributing.rst b/docs/contributing.rst
@@ -146,6 +146,14 @@ tests requires `tox`_.
 Running tests
 -------------
 
+Make sure you have a recent enough `tox`_ installation:
+
+    ``tox --version``
+
+If your version is older than 1.7.0, please update it first:
+
+    ``pip install -U tox``
+
 To run all tests go to the root directory of Scrapy source code and run:
 
     ``tox``