Checking the params object

Author: Yashks1994

Diff for: dynamic/client.py

@@ -219,11 +219,12 @@ def request(self, method, path, body=None, **params):
         header_params = params.get('header_params', {})
         form_params = []
         local_var_files = {}
-        
+
         # HTTP header `Accept`
-        partial_object = params.get('header_params')
-        if 'PartialObjectMetadata' in partial_object.get('Accept'):
-            header_params['Accept'] = 'application/json;as=PartialObjectMetadata;v=v1;g=meta.k8s.io'
+        if params.get('header_params') is not None:
+            partial_object = params.get('header_params')
+            if 'PartialObjectMetadata' in partial_object.get('Accept'):
+                header_params['Accept'] = 'application/json;as=PartialObjectMetadata;v=v1;g=meta.k8s.io'
         else:
             #default
             header_params['Accept'] = self.client.select_header_accept([