From 737016eb553701ec154e33d212379a2356917e4c Mon Sep 17 00:00:00 2001
From: Chris Rossi <chris@archimedeanco.com>
Date: Wed, 16 Jul 2014 17:40:46 -0400
Subject: Handle list of tuples as query string.

---
 pyramid/static.py            | 6 +++++-
 pyramid/tests/test_static.py | 6 ++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/pyramid/static.py b/pyramid/static.py
index 9d691ca46..4ae00b056 100644
--- a/pyramid/static.py
+++ b/pyramid/static.py
@@ -206,7 +206,11 @@ class QueryStringCacheBuster(object):
         self.token = token
 
     def pregenerate(self, token, subpath, kw):
-        kw.setdefault('_query', {})[self.param] = token
+        query = kw.setdefault('_query', {})
+        if isinstance(query, dict):
+            query[self.param] = token
+        else:
+            kw['_query'] = query + [(self.param, token)]
         return subpath, kw
 
 
diff --git a/pyramid/tests/test_static.py b/pyramid/tests/test_static.py
index 5edb70b50..f7b580df2 100644
--- a/pyramid/tests/test_static.py
+++ b/pyramid/tests/test_static.py
@@ -453,6 +453,12 @@ class TestQueryStringCacheBuster(unittest.TestCase):
             fut('foo', ('bar',), {}),
             (('bar',), {'_query': {'y': 'foo'}}))
 
+    def test_pregenerate_query_is_already_tuples(self):
+        fut = self._makeOne().pregenerate
+        self.assertEqual(
+            fut('foo', ('bar',), {'_query': [('a', 'b')]}),
+            (('bar',), {'_query': [('a', 'b'), ('x', 'foo')]}))
+
 class DummyContext:
     pass
 
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