用python写一个手机号码归属地的判断

使用Python可以轻松实现手机号码归属地的判断。可以通过访问第三方API或者本地的号码库来实现。

1. 通过访问第三方API

可以使用聚合数据、阿里云等第三方提供的手机号码归属地API，通过获取接口返回的数据来实现。

首先需要注册相应的服务，获取API的访问密钥。假设获取到的密钥为KEY。代码实现如下：

import requests

phone_number = input("请输入手机号码：")

url = "http://apis.juhe.cn/mobile/get?phone=" + phone_number + "&key=" + KEY

response = requests.get(url)
result = response.json()

if result["error_code"] == 0:
    province = result["result"]["province"]
    city = result["result"]["city"]
    print("该手机号码归属地为：{} {}".format(province, city))
else:
    print("查询失败：" + result["reason"])

2. 通过本地号码库实现

可以使用开源的号码归属地数据库，如ipip.net提供的免费版本号码库。将下载的归属地数据库文件（如“17monipdb.dat”）放置项目目录下。

代码实现如下：

import os
import re
import socket

def load_dat(file_path):
    if not os.path.exists(file_path):
        raise ValueError("The file {} doesn't exist".format(file_path))

    with open(file_path, "rb") as f:
        return f.read()

def find_phone_location(phone_number, db):
    if not phone_number.isdigit():
        raise ValueError("The provided phone number {} is not valid".format(phone_number))

    if len(phone_number) < 7:
        raise ValueError("The provided phone number {} is too short".format(phone_number))

    phone_prefix = phone_number[0:7]

    offset = int(phone_prefix[0:3])
    index_offset = int(phone_prefix[3:])

    offset = offset * 4
    index_offset = index_offset * 4

    max_comp_len = len(db) - 262144 - 4

    while offset < max_comp_len:
        temp = db[offset:offset+4]
        st = int.from_bytes(temp, byteorder='big')

        temp = db[st:st+4]
        ed = int.from_bytes(temp, byteorder='big')

        if index_offset < ed:
            temp = db[st+4:st+7]

            province_index = int.from_bytes(temp, byteorder='big')

            temp = db[province_index:province_index+3]
            province = temp.decode('utf-8')

            temp = db[province_index+3:]
            city_index = int.from_bytes(temp, byteorder='big')

            temp = db[city_index:city_index+3]
            city = temp.decode('utf-8')

            return province, city

        offset += 4

    raise ValueError("The phone number {} wasn't found in the database".format(phone_number))


if __name__ == '__main__':
    phone_number = input('请输入手机号码：')
    db = load_dat('./17monipdb.dat')
    province, city = find_phone_location(phone_number, db)
    print('该手机号码归属地为：{} {}'.format(province, city))