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 f0cdac8bb4ad..f040abb222d0 100644
--- a/modules/openapi-generator/src/main/resources/python/api_client.mustache
+++ b/modules/openapi-generator/src/main/resources/python/api_client.mustache
@@ -262,7 +262,7 @@ class ApiClient:
         else:
             return ApiResponse(status_code = response_data.status,
                            data = return_data,
-                           headers = response_data.getheaders(),
+                           headers = response_data.headers,
                            raw_data = response_data.data)
 {{/tornado}}
 {{#tornado}}
@@ -271,7 +271,7 @@ class ApiClient:
         else:
             raise tornado.gen.Return(ApiResponse(status_code = response_data.status,
                                                  data = return_data,
-                                                 headers = response_data.getheaders(),
+                                                 headers = response_data.headers,
                                                  raw_data = response_data.data))
 {{/tornado}}
 
diff --git a/modules/openapi-generator/src/main/resources/python/exceptions.mustache b/modules/openapi-generator/src/main/resources/python/exceptions.mustache
index 8a155a9fe08e..ceab49dccec9 100644
--- a/modules/openapi-generator/src/main/resources/python/exceptions.mustache
+++ b/modules/openapi-generator/src/main/resources/python/exceptions.mustache
@@ -96,7 +96,7 @@ class ApiException(OpenApiException):
             self.status = http_resp.status
             self.reason = http_resp.reason
             self.body = http_resp.data
-            self.headers = http_resp.getheaders()
+            self.headers = http_resp.headers
         else:
             self.status = status
             self.reason = reason