如何在Python为电子邮件制作语音助手？

众所周知，电子邮件对于沟通非常重要，因为每个专业的沟通都可以通过电子邮件完成，发送和接收邮件的最佳服务是众所周知的GMAIL 。 Gmail 是 Google 开发的免费电子邮件服务。用户可以在网络上访问 Gmail，也可以使用通过 POP 或 IMAP 协议同步电子邮件内容的第三方程序。

要将 Gmail 与语音助手连接起来，我们必须使用 Gmail API。在本文中，我们将了解如何通过发出语音命令来发送和检查电子邮件。 Gmail API 可让您查看和管理 Gmail 邮箱数据，例如话题、邮件和标签。可以在此处找到有关 Gmail API 的更多信息 - Gmail API。

要求：

Python（3 或更高）
Gmail 帐户
谷歌 API 客户端
pyttsx3 模块
语音识别模块

安装：

通过运行以下命令安装库：

pip install google-api-python-client google-auth-httplib2 google-auth-oauthlib

编程需要懂一点英语

运行这个或 pyttsx3：

pip install pyttsx3

运行这个进行语音识别：

pip install SpeechRecognition

现在需要设置一个谷歌云控制台来与 Gmail API 进行交互。这可以很容易地完成。您可以找到有关如何设置 Google 云控制台的信息。

设置好谷歌云控制台后，我们只需要制定一个方法来构建一个语音助手来朗读电子邮件。

方法：

导入所需的模块。
创建以下函数：
- speak()：这个函数将帮助我们的助手说话。
- get_audio()：该函数将帮助助手获取用户的输入。
- check_mails()：此函数用于检查收件箱主要部分中的未读电子邮件。
调用上面创建的函数。

下面是Python的实现。

Python3

from __future__ import print_function
import datetime
import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
import os
import pyttsx3
import speech_recognition as sr
from datetime import date
  
# If modifying these scopes, delete the file token.pickle .
# if you run this for the firs
# t time it will take you to gmail to choose your account
SCOPES = ["https://www.googleapis.com/auth/gmail.readonly"]
  
def speak(text):
    engine=pyttsx3.init()
    voices = engine.getProperty('voices')
    engine.setProperty('voice', voices[1].id)
    rate = engine.getProperty('rate')
  
    engine.setProperty('rate', rate-20)
  
    engine.say(text)
    engine.runAndWait()
  
speak("Welcome to mail service")
  
def get_audio():
    r=sr.Recognizer()
    with sr.Microphone() as source:
        r.pause_threshold = 1
        r.adjust_for_ambient_noise(source, duration=1)
        audio=r.listen(source)
        said=""
  
    try:
        said=r.recognize_google(audio)
        print(said)
  
    except:
        speak("Didn't get that")
  
    return said.lower()
  
def authenticate_gmail():
    """Shows basic usage of the Gmail API.
    Lists the user's Gmail labels.
    """
    creds = None
      
    # The file token.pickle 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.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(port = 0)
              
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)
  
    service = build('gmail', 'v1', credentials=creds)
    return service
  
def check_mails(service):
      
    # fetching emails of today's date
    today = (date.today())  
  
    today_main = today.strftime('%Y/%m/%d')
  
    # Call the Gmail API
    results = service.users().messages().list(userId = 'me',
                                              labelIds=["INBOX","UNREAD"],
                                              q="after:{0} and category:Primary".format(today_main)).execute()
    # The above code will get emails from primary 
    # inbox which are unread
    messages = results.get('messages',[])
  
  
    if not messages:
            
        # if no new emails
        print('No messages found.')   
        speak('No messages found.')
    else:
        m=""
          
        # if email found
        speak("{} new emails found".format(len(messages)))  
  
        speak("if you want to read any particular email just type read ")
        speak("and for not reading type leave ")
        for message in messages:
  
            msg=service.users().messages().get(userId='me',
                                               id = message['id'], format = 'metadata').execute() 
  
            for add in msg['payload']['headers']:
                if add['name']=="From":
  
                    # fetching sender's email name
                    a=str(add['value'].split("<")[0])
                    print(a)
  
                    speak("email from"+a)
                    text=input()
  
                    if text == "read":  
  
                        print(msg['snippet'])
                          
                        # speak up the mail
                        speak(msg['snippet']) 
  
                    else:
                        speak("email passed")
  
SERVICE2=authenticate_gmail()
check_mails(SERVICE2)

输出：