python发送网页注册短信

要发送网页注册短信，需要使用第三方短信接口。以下是一个Python发送短信的示例代码，使用的是阿里云短信接口：

import urllib.parse
import urllib.request
import json

def send_sms(phone_number, sign_name, template_code, template_param):
    access_key_id = "your_access_key_id"
    access_key_secret = "your_access_key_secret"
    region_id = "cn-hangzhou"
    action = "SendSms"
    version = "2017-05-25"

    params = {
        "PhoneNumbers": phone_number,
        "SignName": sign_name,
        "TemplateCode": template_code,
        "TemplateParam": json.dumps(template_param),
        "RegionId": region_id,
        "AccessKeyId": access_key_id,
        "Format": "JSON",
        "SignatureMethod": "HMAC-SHA1",
        "SignatureVersion": "1.0",
        "SignatureNonce": str(uuid.uuid1()),
        "Timestamp": time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime())
    }

    # 签名
    sorted_params = sorted(params.items(), key=lambda x: x[0])
    canonicalized_query_string = ""
    for (k, v) in sorted_params:
        canonicalized_query_string += "&" + urllib.parse.quote(k) + "=" + urllib.parse.quote(v)
    string_to_sign = "GET&%2F&" + urllib.parse.quote(canonicalized_query_string[1:])
    h = hmac.new(bytes(access_key_secret + "&", "utf-8"), bytes(string_to_sign, "utf-8"), hashlib.sha1)
    signature = base64.encodebytes(h.digest()).rstrip()

    # 发送请求
    url = "http://dysmsapi.aliyuncs.com/?Signature=" + urllib.parse.quote(signature) + canonicalized_query_string
    with urllib.request.urlopen(url) as response:
        response_text = response.read().decode("utf-8")
        response_dict = json.loads(response_text)
        if response_dict["Code"] == "OK":
            return response_dict["RequestId"]
        else:
            raise Exception(response_dict["Message"])

使用时，需要替换掉示例代码中的`access_key_id`和`access_key_secret`为你的阿里云短信服务的访问密钥ID和访问密钥Secret，以及填写短信发送的手机号码、短信签名、短信模板号码和短信模板参数。