Add simplejson 3.17.0

* Needed for requests to encode byte-strings to json

lib/simplejson/tests/test_subclass.py

@@ -0,0 +1,37 @@
+from unittest import TestCase
+import simplejson as json
+
+from decimal import Decimal
+
+class AlternateInt(int):
+    def __repr__(self):
+        return 'invalid json'
+    __str__ = __repr__
+
+
+class AlternateFloat(float):
+    def __repr__(self):
+        return 'invalid json'
+    __str__ = __repr__
+
+
+# class AlternateDecimal(Decimal):
+#     def __repr__(self):
+#         return 'invalid json'
+
+
+class TestSubclass(TestCase):
+    def test_int(self):
+        self.assertEqual(json.dumps(AlternateInt(1)), '1')
+        self.assertEqual(json.dumps(AlternateInt(-1)), '-1')
+        self.assertEqual(json.loads(json.dumps({AlternateInt(1): 1})), {'1': 1})
+
+    def test_float(self):
+        self.assertEqual(json.dumps(AlternateFloat(1.0)), '1.0')
+        self.assertEqual(json.dumps(AlternateFloat(-1.0)), '-1.0')
+        self.assertEqual(json.loads(json.dumps({AlternateFloat(1.0): 1})), {'1.0': 1})
+
+    # NOTE: Decimal subclasses are not supported as-is
+    # def test_decimal(self):
+    #     self.assertEqual(json.dumps(AlternateDecimal('1.0')), '1.0')
+    #     self.assertEqual(json.dumps(AlternateDecimal('-1.0')), '-1.0')