When I run the code with body() I will get the Nonetype error.

I've tried putting the body into batchDelete() parameter but it causes delegation denied. I have given access to the Scope in cloud.google.com and at this point I'm not sure what I can do next.

#pylint:disable=E1101
from __future__ import print_function

import os.path

from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError

# If modifying these scopes, delete the file token.json.
SCOPES = ['https://mail.google.com/']

# The ID of a sample document.
DOCUMENT_ID = '195j9eDD3ccgjQRttHhJPymLJUCOUjs-jmwTrekvdjFE'


def main():
    """Shows basic usage of the Docs API.
    Prints the title of a sample document.
    """
    creds = None
    # The file token.json stores the user's access and refresh tokens, and is
    # created automatically when the authorization flow completes for the first
    # time.
    if os.path.exists('token.json'):
        creds = Credentials.from_authorized_user_file('token.json', SCOPES)
    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file(
                'credentials.json', SCOPES)
            creds = flow.run_local_server(port=0)
        # Save the credentials for the next run
        with open('token.json', 'w') as token:
            token.write(creds.to_json())

    try:
        service = build('gmail', 'v1', credentials=creds)

        
        # Retrieve the documents contents from the Docs service.
        
        
        
#This is the code that is causing error. -----------------------------  
     service.users().messages().batchDelete(userId='me').body({'ids':[
        '[email protected]',
        '[email protected]']
        }) 

   #-----------------------------   
    
    except HttpError as err:
        print(err)


        
if __name__ == '__main__':
    main()

This is the error/Traceback after running the program.

Traceback (most recent call last):
  File "/data/user/0/ru.iiec.pydroid3/files/accomp_files/iiec_run/iiec_run.py", line
31, in <module>
    start(fakepyfile,mainpyfile)
  File "/data/user/0/ru.iiec.pydroid3/files/accomp_files/iiec_run/iiec_run.py", line 30, in start
    exec(open(mainpyfile).read(),  __main__.__dict__)
  File "<string>", line 54, in <module>
  File "<string>", line 46, in main
TypeError: 'NoneType' object is not callable

[Program finished]

CodePudding user response：

Some things to notice on the code provided:

1. The call to service.users().messages().batchDelete is not indented inside the try block. This might have broken when pasting it here, but it is worth mentioning since this is python code.
2. body is not a method, therefore calling like .body(...) will return an exception. In fact, body is the name of the argument of the batchDelete method. Here is the specific python client documentation for this method.
3. The field ids of the request body expects message ids rather than email addresses. This is an API specification (unrelated to the python client) documented here. There are several methods to retrieve a message id in the Gmail API. For example the method users.messages.list()
4. Creating the request structure and populating the payload does not mean it actually make the HTTP request. You must call the method execute(). This scenario is documented here.

Fix suggestion:

...
        service.users().messages().batchDelete(userId='me', body={'ids':[
            '999999f99ff9e99e',
            '9999a99c99c99d99']
            }).execute()
...