python -V

pip list

pip install -i https://mirrors.tencent.com/pypi/simple/ --upgrade tencentcloud-sdk-python

import json,base64
from time import time,sleep
from tencentcloud.common import credential
from tencentcloud.common.profile.client_profile import ClientProfile
from tencentcloud.common.profile.http_profile import HttpProfile
from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
from tencentcloud.ssl.v20191205 import ssl_client, models

start = time()
#SecretId: Your API SecretID; SecretKey: Your API SecretKey.
cred = credential.Credential("SecretId", "SecretKey")
httpProfile = HttpProfile()
httpProfile.endpoint = "ssl.tencentcloudapi.com"
clientProfile = ClientProfile()
clientProfile.httpProfile = httpProfile
domain_name = []
while True:
 domain = input('the domain for which a certificate is applied')#Enter the domain to be bound with the certificate you are applying for; if you don’t want to continue, press Enter.
 if domain == '':
     break
 else:
     domain_name.append(domain)

for i in range(len(domain_name)):
 client = ssl_client.SslClient(cred, "", clientProfile)
 try:

     req = models.ApplyCertificateRequest()
     params = {
         "DvAuthMethod": "DNS_AUTO",
         "DomainName": domain_name[i]
     }
     req.from_json_string(json.dumps(params))

     resp = client.ApplyCertificate(req)
     response = json.loads(resp.to_json_string())
     print('domain: {0}material submitted, auto-verification in 5s'.format(domain_name[i]))
     certid = response['CertificateId']
     sleep(5)
     try:
         req1 = models.CompleteCertificateRequest()
         params1 = {
             "CertificateId": certid
         }
         req1.from_json_string(json.dumps(params1))

         resp1 = client.CompleteCertificate(req1)
         response1 = json.loads(resp1.to_json_string())
         print('doman: {0}verified successfully. Prepare to download the certificate'.format(domain_name[i]))
         try:
             req2 = models.DownloadCertificateRequest()
             params2 = {
                 "CertificateId": certid
             }
             req2.from_json_string(json.dumps(params2))

             resp2 = client.DownloadCertificate(req2)
             response2 = json.loads(resp2.to_json_string())
             # print(response2['Content'])
             content = response2['Content']
             with open("{0}.zip".format(domain_name[i]), "wb") as f:

                 f.write(base64.b64decode(content))
                 f.close()
         except TencentCloudSDKException as err:
             print(err)
     except TencentCloudSDKException as err:
         print(err)
 except TencentCloudSDKException as err:
     print(err)
end = time()
print('This code execution takes', round(end - start, 2), 's')