从标签下载所有电子邮件为pdf格式(Gmail)

素材狗 2022-01-01 14:48:58 文章分类：Python问题点击数：7次

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Python : download as pdf all emails from a label (gmail)(从标签下载所有电子邮件为pdf格式(Gmail))

本文介绍了从标签下载所有电子邮件为pdf格式(Gmail)的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想从Gmail下载100多封电子邮件作为pdf。通过Gmail中的打印选项手动下载所有这些文件太长了。

此python脚本检索所选标签中的电子邮件。我怎样才能将这封电子邮件转换成pdf。

# source  = https://developers.google.com/gmail/api/quickstart/python?authuser=2

from __future__ import print_function
import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request



SCOPES = ['https://www.googleapis.com/auth/gmail.readonly']

def main():
    creds = None

    if os.path.exists('token.pickle'):
        with open('token.pickle', 'rb') as token:
            creds = pickle.load(token)
    # 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()
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)

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

    # Call the Gmail API 

    response= service.users().messages().list(userId="me", labelIds="Label_53", q=None, pageToken=None, maxResults=None, includeSpamTrash=None).execute()
    all_message_in_label = []
    if 'messages' in response:
        all_message_in_label.extend(response['messages'])

    while 'nextPageToken' in response:
      page_token = response['nextPageToken']
      response = service.users().messages().list(userId="me", labelIds="Label_53", q=None, pageToken=page_token, maxResults=None, includeSpamTrash=None).execute()
      all_message_in_label.extend(response['messages'])


    if not all_message_in_label:
        print('No email LM found.')
    else:
        # get message from Id listed in all_message_in_label
        for emails in all_message_in_label: 
            message= service.users().messages().get(userId="me", id=emails["id"], format="raw", metadataHeaders=None).execute()



if __name__ == '__main__':
    main()