Move storage class __str__ methods to base class, and just show keys instead of items

6 files changed, 3 insertions, 15 deletions

diff --git a/requests_cache/backends/base.py b/requests_cache/backends/base.py
index e912879..def4dc1 100644
--- a/requests_cache/backends/base.py
+++ b/requests_cache/backends/base.py
@@ -201,3 +201,6 @@ class BaseStorage(MutableMapping, ABC):
             return Serializer(secret_key, salt=salt, serializer=pickle)
         else:
             return pickle
+
+    def __str__(self):
+        return str(list(self.keys()))
diff --git a/requests_cache/backends/dynamodb.py b/requests_cache/backends/dynamodb.py
index ffb610c..bcd1e26 100644
--- a/requests_cache/backends/dynamodb.py
+++ b/requests_cache/backends/dynamodb.py
@@ -110,9 +110,6 @@ class DynamoDbDict(BaseStorage):
             composite_key = {'namespace': v['namespace'], 'key': v['key']}
             self._table.delete_item(Key=composite_key)
 
-    def __str__(self):
-        return str(dict(self.items()))
-
     def __scan_table(self):
         expression_attribute_values = {':Namespace': self._self_key}
         expression_attribute_names = {'#N': 'namespace'}
diff --git a/requests_cache/backends/gridfs.py b/requests_cache/backends/gridfs.py
index 73f258e..82ca05c 100644
--- a/requests_cache/backends/gridfs.py
+++ b/requests_cache/backends/gridfs.py
@@ -77,6 +77,3 @@ class GridFSPickleDict(BaseStorage):
     def clear(self):
         self.db['fs.files'].drop()
         self.db['fs.chunks'].drop()
-
-    def __str__(self):
-        return str(dict(self.items()))
diff --git a/requests_cache/backends/mongo.py b/requests_cache/backends/mongo.py
index b479a47..9ebadf4 100644
--- a/requests_cache/backends/mongo.py
+++ b/requests_cache/backends/mongo.py
@@ -70,9 +70,6 @@ class MongoDict(BaseStorage):
     def clear(self):
         self.collection.drop()
 
-    def __str__(self):
-        return str(dict(self.items()))
-
 
 class MongoPickleDict(MongoDict):
     """Same as :class:`MongoDict`, but pickles values before saving"""
diff --git a/requests_cache/backends/redis.py b/requests_cache/backends/redis.py
index 33236d5..5209aa6 100644
--- a/requests_cache/backends/redis.py
+++ b/requests_cache/backends/redis.py
@@ -60,6 +60,3 @@ class RedisDict(BaseStorage):
 
     def clear(self):
         self.connection.delete(self._self_key)
-
-    def __str__(self):
-        return str(dict(self.items()))
diff --git a/requests_cache/backends/sqlite.py b/requests_cache/backends/sqlite.py
index face65e..9c98fcd 100644
--- a/requests_cache/backends/sqlite.py
+++ b/requests_cache/backends/sqlite.py
@@ -143,9 +143,6 @@ class DbDict(BaseStorage):
         with self.connection(True) as con:
             con.execute("vacuum")
 
-    def __str__(self):
-        return str(dict(self.items()))
-
 
 class DbPickleDict(DbDict):
     """Same as :class:`DbDict`, but pickles values before saving"""