Fixed dynamodb2 put_item ValidationException

moto/dynamodb2/models.py

@@ -800,13 +800,19 @@ class Table(BaseModel):
         overwrite=False,
     ):
         if self.hash_key_attr not in item_attrs.keys():
-            raise ValueError(
+            raise KeyError(
                 "One or more parameter values were invalid: Missing the key "
                 + self.hash_key_attr
                 + " in the item"
             )
         hash_value = DynamoType(item_attrs.get(self.hash_key_attr))
         if self.has_range_key:
+            if self.range_key_attr not in item_attrs.keys():
+                raise KeyError(
+                    "One or more parameter values were invalid: Missing the key "
+                    + self.range_key_attr
+                    + " in the item"
+                )
             range_value = DynamoType(item_attrs.get(self.range_key_attr))
         else:
             range_value = None