Check if cell has a value

validata_validate/custom_checks/extra_or_missing_header.py

@@ -37,7 +37,8 @@ class ExtraOrMissingHeader(object):
         extra_headers = headers_set - field_names_set
         if extra_headers:
             for cell in cells:
-                if cell['value'] in extra_headers:
+                value = cell.get('value')
+                if value is not None and value in extra_headers:
                     errors.append(Error(code='extra-header', cell=cell))
 
         if field_names_set == headers_set and field_names != headers: