Python request post上传文件常见要点

# 输出参数：请求响应报文
import requests
request_url = \'https://XXXXX/file-upload\'
head = {
    # \"Content-Type\": \"multipart/form-data; boundary=alamofire.boundary.3c7024a080e6a27f\", #注意，此处不要写Content-Type
\"apiVersion\": \"v1.0.0\",
    \"appVersion\": \"v1.0.0\",
    \"OS\": \"iOS\",
    \"OSVersion\": \"11.4.1\",
    \"language\": \"zh\",
    \"did\": \"NTIzOTIxNDYwMzMyM2NjZjk1OGM5NjBmYzNlNzg2OTYtZTkxNzg1MzYzNjA4NGM0Mjg4Njg3MmFhNzExMDE1YTgwMDAyLXIwWUtuK0MrS1Y2eDBteWs3WnhDYmQ2ZnovTT0=\",
    \"reqSeq\": \"eb144eed4639d36bb6a7b9aa2a563421\",
    \"timestamp\": \"1545789471\",
     \"userToken\":\"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJiaXpUeXBlIjoiTE9BTiIsInVzZXJSb2xlIjoyLCJleHAiOjE1NTQ2MTYwMjUsInVzZXJJZCI6MzAxMzkyNDUxNTc3Mzk3MjQ4LCJjaGVja0NvZGUiOiJiZTk1MDEwZjczN2Q0YTU2ODkxNTYyMDBlNDhhZDEyZCJ9.97Km63wUC6IaoSYE1Db8fAxYoW5N-ZQkbiw4kETN2cQ\"
}

fl = open(\'test.png\',\'rb\')
files = {\'files\': (\'test.png\', fl, \'application/octet-stream\', {\'Expires\': \'0\'})} #字段名files 以及类型和application/octet-stream 和抓取到的接口一致
r2 = requests.post(request_url, headers=head, files=files)

print(requests.Request(\'POST\', request_url, headers=head, files=files).prepare().body.decode(\'ascii\')) #可以打印出来真实请求的 字段名 以及类型等信息，如果和抓取接口不一致，调整
print(r2.text)