文档什么都没说，官方例子用的还是urllib2，这个data要js格式也没说，给后面的python3老铁，整个例子

# encoding:utf-8
import base64
import requests
import json

'''
easydl物体检测
'''

request_url = "【接口地址】"



png = '图片路径'
fo = open(png, "rb")
png = base64.b64encode(fo.read())
fo.close()

data = {'image':png.decode(), "top_num": 5,}
json_mod = json.dumps(data)
print()

headers = {'Content-Type': 'application/json',}


access_token = '[调用鉴权接口获取的token]'
request_url = request_url + "?access_token=" + access_token
request = requests.post(url=request_url, data=json_mod,headers=headers)
print(request.json())