diff --git a/modules/openapi-generator/src/main/resources/python/api_client.mustache b/modules/openapi-generator/src/main/resources/python/api_client.mustache
index 63dd91ebb5d..4c0be2fe868 100644
--- a/modules/openapi-generator/src/main/resources/python/api_client.mustache
+++ b/modules/openapi-generator/src/main/resources/python/api_client.mustache
@@ -294,7 +294,7 @@ class ApiClient(object):
         elif klass == datetime.date:
             return self.__deserialize_date(data)
         elif klass == datetime.datetime:
-            return self.__deserialize_datatime(data)
+            return self.__deserialize_datetime(data)
         else:
             return self.__deserialize_model(data, klass)
 
@@ -594,7 +594,7 @@ class ApiClient(object):
                 reason="Failed to parse `{0}` as date object".format(string)
             )
 
-    def __deserialize_datatime(self, string):
+    def __deserialize_datetime(self, string):
         """Deserializes string to datetime.
 
         The string should be in iso8601 datetime format.
diff --git a/samples/client/petstore/python-asyncio/petstore_api/api_client.py b/samples/client/petstore/python-asyncio/petstore_api/api_client.py
index 0405206d982..8aab3aefb45 100644
--- a/samples/client/petstore/python-asyncio/petstore_api/api_client.py
+++ b/samples/client/petstore/python-asyncio/petstore_api/api_client.py
@@ -287,7 +287,7 @@ class ApiClient(object):
         elif klass == datetime.date:
             return self.__deserialize_date(data)
         elif klass == datetime.datetime:
-            return self.__deserialize_datatime(data)
+            return self.__deserialize_datetime(data)
         else:
             return self.__deserialize_model(data, klass)
 
@@ -587,7 +587,7 @@ class ApiClient(object):
                 reason="Failed to parse `{0}` as date object".format(string)
             )
 
-    def __deserialize_datatime(self, string):
+    def __deserialize_datetime(self, string):
         """Deserializes string to datetime.
 
         The string should be in iso8601 datetime format.
diff --git a/samples/client/petstore/python-tornado/petstore_api/api_client.py b/samples/client/petstore/python-tornado/petstore_api/api_client.py
index 6824bec06ef..c3c8c6103e4 100644
--- a/samples/client/petstore/python-tornado/petstore_api/api_client.py
+++ b/samples/client/petstore/python-tornado/petstore_api/api_client.py
@@ -289,7 +289,7 @@ class ApiClient(object):
         elif klass == datetime.date:
             return self.__deserialize_date(data)
         elif klass == datetime.datetime:
-            return self.__deserialize_datatime(data)
+            return self.__deserialize_datetime(data)
         else:
             return self.__deserialize_model(data, klass)
 
@@ -589,7 +589,7 @@ class ApiClient(object):
                 reason="Failed to parse `{0}` as date object".format(string)
             )
 
-    def __deserialize_datatime(self, string):
+    def __deserialize_datetime(self, string):
         """Deserializes string to datetime.
 
         The string should be in iso8601 datetime format.
diff --git a/samples/client/petstore/python/petstore_api/api_client.py b/samples/client/petstore/python/petstore_api/api_client.py
index f9c494a76c3..57e2758ecac 100644
--- a/samples/client/petstore/python/petstore_api/api_client.py
+++ b/samples/client/petstore/python/petstore_api/api_client.py
@@ -287,7 +287,7 @@ class ApiClient(object):
         elif klass == datetime.date:
             return self.__deserialize_date(data)
         elif klass == datetime.datetime:
-            return self.__deserialize_datatime(data)
+            return self.__deserialize_datetime(data)
         else:
             return self.__deserialize_model(data, klass)
 
@@ -587,7 +587,7 @@ class ApiClient(object):
                 reason="Failed to parse `{0}` as date object".format(string)
             )
 
-    def __deserialize_datatime(self, string):
+    def __deserialize_datetime(self, string):
         """Deserializes string to datetime.
 
         The string should be in iso8601 datetime format.
diff --git a/samples/openapi3/client/petstore/python/petstore_api/api_client.py b/samples/openapi3/client/petstore/python/petstore_api/api_client.py
index f9c494a76c3..57e2758ecac 100644
--- a/samples/openapi3/client/petstore/python/petstore_api/api_client.py
+++ b/samples/openapi3/client/petstore/python/petstore_api/api_client.py
@@ -287,7 +287,7 @@ class ApiClient(object):
         elif klass == datetime.date:
             return self.__deserialize_date(data)
         elif klass == datetime.datetime:
-            return self.__deserialize_datatime(data)
+            return self.__deserialize_datetime(data)
         else:
             return self.__deserialize_model(data, klass)
 
@@ -587,7 +587,7 @@ class ApiClient(object):
                 reason="Failed to parse `{0}` as date object".format(string)
             )
 
-    def __deserialize_datatime(self, string):
+    def __deserialize_datetime(self, string):
         """Deserializes string to datetime.
 
         The string should be in iso8601 datetime format.