使用python發送消息時出現錯誤400

Question

我正嘗試使用Gmail API發送電子郵件。我已成功通過身份驗證，並在我的計算機上有一個client_secret.json文件。 我已經能夠得到使用的Gmail API網站上的快速入門例子標籤的列表

我已經成功地重置了範圍

SCOPES = 'https://mail.google.com' 

允許完全進入我的Gmail帳戶。

我有一個python腳本，編譯從here和here。見下文。執行腳本時，出現以下錯誤消息：

發生錯誤：https://www.googleapis.com/gmail/v1/users/me/messages/send?alt=json返回「'raw 'RFC822負載消息字符串或上傳消息通過/上傳/ * URL所需「>

任何想法，我在做什麼錯誤，以及如何解決它？

from __future__ import print_function 
import argparse 
import time 
from time import strftime, localtime 
import os 

import base64 
import os 
import httplib2 
from httplib2 import Http 

from apiclient import errors 
from apiclient import discovery 

import oauth2client 
from oauth2client import file, client, tools 

SCOPES = 'https://mail.google.com' 
CLIENT_SECRET_FILE = 'client_secret.json' 
store = file.Storage('storage.json') 
credentials = store.get() 
if not credentials or credentials.invalid: 
    flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args() 
    flow = client.flow_from_clientsecrets('client_secret.json', SCOPES) 
    credentials = tools.run_flow(flow, store, flags) 

def get_credentials(): 
    """Gets valid user credentials from storage. 

    If nothing has been stored, or if the stored credentials are invalid, 
    the OAuth2 flow is completed to obtain the new credentials. 

    Returns: 
     Credentials, the obtained credential. 
    """ 
    home_dir = os.path.expanduser('~') 
    credential_dir = os.path.join(home_dir, '.credentials') 
    if not os.path.exists(credential_dir): 
     os.makedirs(credential_dir) 
    credential_path = os.path.join(credential_dir, 
     'gmail-python-quickstart.json') 

    store = oauth2client.file.Storage(credential_path) 
    credentials = store.get() 
    if not credentials or credentials.invalid: 
     flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES) 
     flow.user_agent = APPLICATION_NAME 
     if flags: 
      credentials = tools.run_flow(flow, store, flags) 
     else: # Needed only for compatibility with Python 2.6 
      credentials = tools.run(flow, store) 
     print('Storing credentials to ' + credential_path) 
    return credentials 


def send_message(service, user_id, message): 
    """Send an email message. 

    Args: 
    service: Authorized Gmail API service instance. 
    user_id: User's email address. The special value "me" 
    can be used to indicate the authenticated user. 
    message: Message to be sent. 

    Returns: 
    Sent Message. 
    """ 
    try: 
     message = (service.users().messages().send(userId=user_id, body=message) 
       .execute()) 
     print ('Message Id: %s' % message['id']) 
     return message 
    except errors.HttpError, error: 
     print ('An error occurred: %s' % error) 


def main(): 
    credentials = get_credentials() 
    http = credentials.authorize(httplib2.Http()) 
    service = discovery.build('gmail', 'v1', http=http) 
    send_message(service, 'me','test message') 


main() 

Answer 1

一個消息有像它在Sending Email指南概述了將創建：

def create_message(sender, to, subject, message_text): 
    message = MIMEText(message_text) 
    message['to'] = to 
    message['from'] = sender 
    message['subject'] = subject 
    return {'raw': base64.urlsafe_b64encode(message.as_string())} 

def main(): 
    credentials = get_credentials() 
    http = credentials.authorize(httplib2.Http()) 
    service = discovery.build('gmail', 'v1', http=http) 
    message = create_message(
    'sender@gmail.com', 'receiver@gmail.com', 'Subject', 'Message text' 
) 
    send_message(service, 'me', message)