requests上传post文件，python

import requests


def do_post():
    url = 'http://127.0.0.1:8000/file/upload'
    f = open(r'文件具体路径', 'rb')
    files = {"file": f}

    r = requests.post(url, files=files)
    s = requests.session()

    print(s.headers)
    print(r.json())