雲打碼平臺處理驗證碼的實現流程：

1. 對攜帶驗證碼的頁面資料進行抓取
2. 可以將頁面資料中驗證碼進行解析，驗證碼圖片下載到本地
3. 可以將驗證碼圖片提交給三方平臺進行識別，返回驗證碼圖片上的資料值

# 雲打碼平臺api
import http.client, mimetypes, urllib, json, time, requests


class YDMHttp:
    apiurl = 'http://api.yundama.com/api.php'
    username = ''
    password = ''
    appid = ''
    appkey = ''

    def __init__(self, username, password, appid, appkey):
        self.username = username
        self.password = password
        self.appid = str(appid)
        self.appkey = appkey

    def request(self, fields, files=[]):
        response = self.post_url(self.apiurl, fields, files)
        response = json.loads(response)
        return response

    def balance(self):
        data = {'method': 'balance', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey}
        response = self.request(data)
        if (response):
            if (response['ret'] and response['ret'] < 0):
                return response['ret']
            else:
                return response['balance']
        else:
            return -9001

    def login(self):
        data = {'method': 'login', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey}
        response = self.request(data)
        if (response):
            if (response['ret'] and response['ret'] < 0):
                return response['ret']
            else:
                return response['uid']
        else:
            return -9001

    def upload(self, filename, codetype, timeout):
        data = {'method': 'upload', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey, 'codetype': str(codetype), 'timeout': str(timeout)}
        file = {'file': filename}
        response = self.request(data, file)
        if (response):
            if (response['ret'] and response['ret'] < 0):
                return response['ret']
            else:
                return response['cid']
        else:
            return -9001

    def result(self, cid):
        data = {'method': 'result', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey, 'cid': str(cid)}
        response = self.request(data)
        return response and response['text'] or ''

    def decode(self, filename, codetype, timeout):
        cid = self.upload(filename, codetype, timeout)
        if (cid > 0):
            for i in range(0, timeout):
                result = self.result(cid)
                if (result != ''):
                    return cid, result
                else:
                    time.sleep(1)
            return -3003, ''
        else:
            return cid, ''

    def report(self, cid):
        data = {'method': 'report', 'username': self.username, 'password': self.password, 'appid': self.appid,
                'appkey': self.appkey, 'cid': str(cid), 'flag': '0'}
        response = self.request(data)
        if (response):
            return response['ret']
        else:
            return -9001

    def post_url(self, url, fields, files=[]):
        for key in files:
            files[key] = open(files[key], 'rb')
        res = requests.post(url, files=files, data=fields)
        return res.text

def getCode(codeImg):
    # 使用者名稱
    username    = 'wualin'

    # 密碼
    password    = '09212427'

    # 軟體ＩＤ，開發者分成必要引數。登入開發者後臺【我的軟體】獲得！
    appid       = 6524

    # 軟體金鑰，開發者分成必要引數。登入開發者後臺【我的軟體】獲得！
    appkey      = '4f63d68488c9f0b1f090f7ccbe79e399'

    # 圖片檔案
    filename    = codeImg

    # 驗證碼型別，# 例：1004表示4位字母數字，不同型別收費不同。請準確填寫，否則影響識別率。在此查詢所有型別 http://www.yundama.com/price.html
    codetype    = 3000

    # 超時時間，秒
    timeout     = 20

    # 檢查
    if (username == 'username'):
        print('請設定好相關引數再測試')
    else:
        # 初始化
        yundama = YDMHttp(username, password, appid, appkey)

        # 登陸雲打碼
        uid = yundama.login()
        print('uid: %s' % uid)

        # 查詢餘額
        balance = yundama.balance()
        print('balance: %s' % balance)

        # 開始識別，圖片路徑，驗證碼型別ID，超時時間（秒），識別結果
        cid, result = yundama.decode(filename, codetype, timeout)
        print('cid: %s, result: %s' % (cid, result))
        return result
 

呼叫雲打碼平臺api破解驗證碼進行豆瓣電影登陸

import discern_code
# 獲取驗證碼圖片儲存到本地
import requests
from lxml import etree
import re

url = 'https://www.douban.com/accounts/login?source=movie'
headers = {
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36'
}
page_text = requests.get(url=url,headers=headers).text

# 使用xpath解析出驗證碼圖片的url
tree = etree.HTML(page_text)
codeImg_url = tree.xpath('//*[@id="captcha_image"]/@src')[0]

# 獲取到圖片的二進位制資料儲存到本地
code_img = requests.get(url=codeImg_url,headers=headers)
with open('code.png','wb') as f:
    f.write(code_img.content)
code = discern_code.getCode('code.png')

# 獲取captcha-id的值
c_id = re.findall('<img id="captcha_image" .*?id=(.*?)&amp.*?',page_text)[0]
login_url = 'https://accounts.douban.com/login'
data = {
    'source': 'movie',
    'redir': 'https://movie.douban.com/',
    'form_email': '
 
[email protected]',
    'form_password': '09212427zlh',
    'captcha-solution': code,
    'captcha-id': c_id,
    'login': '登入',
}
response = requests.post(url=login_url,data=data,headers=headers)
with open('豆瓣.html','w',encoding='utf-8') as f:
    f.write(response.text)