Fix unpickling CachedResponse on python 3.6

1 files changed, 6 insertions, 0 deletions

diff --git a/requests_cache/models/response.py b/requests_cache/models/response.py
index a0efb72..693e0fa 100755
--- a/requests_cache/models/response.py
+++ b/requests_cache/models/response.py
@@ -111,6 +111,12 @@ class CachedResponse(Response):
         """Get the size of the response body in bytes"""
         return len(self.content) if self.content else 0
 
+    def __getstate__(self):
+        """Override pickling behavior in ``requests.Response.__getstate__``;
+        only required for python 3.6
+        """
+        return self.__dict__
+
     def __str__(self):
         return (
             f'request: {self.request}, response: {self.status_code} '