python3 request multipart post example

multipart_post.py

import requests
import io
import json
from pprint import pprint

buffer = b'123123123'
params = [
    # 文本类型数据
    # RecoderId 是表单字段名
    # BreakIn 是字段内容
    # "text/plain" 是content-type
    ("RecoderId", (None, "BreakIn", 'text/plain')),
    # 文件类型数据 
    # RecorderImage 是表单字段名, 
    # image.jpg 告诉服务器的文件名, 
    # buffer是文件内容(字节), io.BytesIO(buffer) 将buffer包装成字节流， 
    # "image/jpeg" 是content-type
    ("RecorderImage", ("image.jpg", io.BytesIO(buffer), "image/jpeg")),
    # 文件类型数据 
    # 直接open本地文件也是可以的，open后得到字节流， 
    ("RecorderImage", ("image.jpg", open(__file__, "rb"), "image/jpeg"))
]
r = requests.post("http://httpbin.org/post", files=params)
res = json.loads(r.text)
print(r.status_code)
pprint(res)
r.close()