Update get_gmail_data.py

get_gmail_data.py

@@ -135,10 +135,13 @@ class GmailDataExtractor:
         message_id = message.get("id")
         if not message_id:
             return None, None, [], False
-
+        subject=''
         message_data = self.__fetch_message_data(message_id)
-        subject = message_data.get('payload', {}).get('headers', {}).get('value', '')
-
+        if 'payload' in message_data and 'headers' in message_data['payload']:
+            headers = message_data['payload']['headers']
+            for header in headers:
+                if header['name'] == 'Subject':
+                    subject = header['value']
         body = ''
         links = []
         has_attachment = False