Merge pull request #583 from boilerroomtv/richardnias-patch-1

Fix `Personalization.substitutions` setter

Author: thinkingserious

sendgrid/helpers/mail/personalization.py

@@ -116,7 +116,7 @@ def substitutions(self):
 
     @substitutions.setter
     def substitutions(self, value):
-        self.substitutions = value
+        self._substitutions = value
 
     def add_substitution(self, substitution):
         """Add a new Substitution to this Personalization.

test/test_mail.py

@@ -558,3 +558,7 @@ def test_disable_tracking(self):
             tracking_settings.get(),
             {'click_tracking': {'enable': False, 'enable_text': False}}
         )
+
+    def test_directly_setting_substitutions(self):
+        personalization = Personalization()
+        personalization.substitutions = [{'a': 0}]