# 在python3.7和V3环境下人脸对比示例代码

在原示例基础，主要更改：

1·用urllib.request替代所有的urllib2
# import urllib2

2·在原data=params尾加上了.encode(encoding="utf-8"),同时，在下面的print输出时，再使用decode("utf-8")进行解码  参考https://blog.csdn.net/weixin_41596463/article/details/79184537

request = urllib.request.Request(url=request_url, data=params.encode(encoding="utf-8"))
# request = urllib.request.Request(url=request_url, data=params)
# request = urllib2.Request(url=request_url, data=params)

3·在print输出时加上decode("utf-8")解码
print(content.decode("utf-8"))
#print(content)

# encoding:utf-8
import urllib.request
# import urllib2
import json

'''
人脸对比
'''

request_url = "https://aip.baidubce.com/rest/2.0/face/v3/match"

# image后面引号内的编码是用https://tool.css-js.com/base64.html编码工具，转换的本地图片代码，内容很长，这里是简写示意，运行时要代换为自己转换的编码。
# 但是不选“包含头”。
params = json.dumps(
    [{"image": "sfasq35sadvsvqwr5q...", "image_type": "BASE64", "face_type": "LIVE", "quality_control": "LOW"},
     {"image": "sfasq35sadvsvqwr5q...", "image_type": "BASE64", "face_type": "IDCARD", "quality_control": "LOW"}])
#这个face_type的值不一样，但没看到对结果的影响。

access_token = '[调用鉴权接口获取的token]'
request_url = request_url + "?access_token=" + access_token

# request = urllib2.Request(url=request_url, data=params)
# 原urllib2替换为urllib.request:
# request = urllib.request.Request(url=request_url, data=params)
# 在原data=params尾加上了.encode(encoding="utf-8"),同时，在下面的print输出时，再使用decode("utf-8")进行解码 参考https://blog.csdn.net/weixin_41596463/article/details/79184537
#形成下面的代码：
request = urllib.request.Request(url=request_url, data=params.encode(encoding="utf-8"))


request.add_header('Content-Type', 'application/json')
response = urllib.request.urlopen(request)
# response = urllib2.urlopen(request)
content = response.read()
if content:
    print(content.decode("utf-8"))
    #print(content)

运行结果：
python.exe face-duibi.py

{"error_code":0,"error_msg":"SUCCESS","log_id":305486846880221051,"timestamp":1544688022,"cached":0,"result":{"score":91.44816589,"face_list":[{"face_token":"d64ce288d3b9f1d00000f00cf73be8de"},{"face_token":"b67f82aed1babadb3617d68544df3dd1"}]}}

Process finished with exit code 0