如何使用Gmail Python API獲取電子郵件發件人的電子郵件地址

Question

我想使用Google API python客戶端查找電子郵件地址/電子郵件發件人的姓名。 到目前為止，我已經提取了有關該消息的詳細信息，但是我很難找到一種方法來提取查找程序的信息。

這是代碼片段：

from __future__ import print_function
import httplib2
import os

from apiclient import discovery
from oauth2client import client
from oauth2client import tools
from oauth2client.file import Storage

try:
    import argparse
    flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
except ImportError:
    flags = None

# If modifying these scopes, delete your previously saved credentials
# at ~/.credentials/gmail-python-quickstart.json
SCOPES = 'https://www.googleapis.com/auth/gmail.readonly'
CLIENT_SECRET_FILE = 'client_secret.json'
APPLICATION_NAME = 'Gmail API Python Quickstart'


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 = 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 main():
    """Shows basic usage of the Gmail API.

    Creates a Gmail API service object and outputs a list of label names
    of the user's Gmail account.
    """
    credentials = get_credentials()
    http = credentials.authorize(httplib2.Http())
    service = discovery.build('gmail', 'v1', http=http)

    results = service.users().messages().list(userId='me').execute()
    messages = results['messages']

    mail = service.users().messages().get(userId='me', id=messages[0]['id'], format='minimal').execute()
    # I have other formats(RAW, METADATA and FULL) but I cannot parse them.
    print(mail)

if __name__ == '__main__':
    main()

我正在尋找某種方法（內置庫或第三方庫）來解析API返回的電子郵件對象，以返回更具可讀性的信息。 某些臨時方法也可以暫時使用。

Answer 1

我采用了一種臨時方法來提取有關電子郵件的基本信息。

這是代碼段：

metadata = mail['payload']['headers'] 
# This list contains information about To, From and Subject among other gibberish.

for d in metadata:

    # for sender's information
    if d['name'] == 'From':
        print(d['value'])

    # for subject of the mail
    if d['name'] == 'Subject':
        print(d['value'])