python - 如何在 python3 和 `requests` 上发布图像和文本 MultipartForm ？

Question

我正在将代码从 NodeJS 移植到 python3。我想发布图像二进制数据和文本。我该怎么做 ？谢谢。

NodeJS

filePath = "xxx.jpeg"
text = "xxx"
return chakram.request("POST", "http://xxx",
     { "multipart" : [
           { "body" : fs.createReadStream(filePath),
             "Content-Type" : "image/jpeg",
             "Content-Disposition" : "name='file'; filename='" + filePath + "'"
           },
           { "body" : JSON.stringify(this.RequestData(text)),
             "Content-Type" : "application/specified-content-type-xxx"
           }
       ],
       "headers" : {
           "Authorization" : "xxx"
       }
     })

我的错误Python代码与请求:

filePath = "xxx.jpeg"
text = "xxx"
headers = {
    "Authorization" : "xxx"
}

binary_data = None
with open(file_path, 'rb') as fp:
    binary_data = fp.read()

request_body = {
    "text": text,
    "type": "message",
    "from": {
        "id": "user1"
    }
}
files = {
    "file": (filePath, binary_data, 'image/jpeg'),
    "": ("", request_body, "application/specified-content-type-xxx")
}
resp = requests.post("http://xxx", files=files, headers=headers)

我收到 500 错误。

Answer 1

python3 请求模块支持文件，here 。这应该适合您。

import requests

url = "http://xxx"

# just set files to a list of tuples of (form_field_name, file_info)
multiple_files = [
        ('images', ('xxx.jpeg', open('xxx.jpeg', 'rb'), 'image/png')),
        ('images', ('bar.png', open('bar.png', 'rb'), 'image/png'))
]

text_data = {"key":"value"}
headers = {
    "Authorization" : "xxx",
    "Content-Type": "application/json"
}
r = requests.post(url, files=multiple_files, data=text_data, headers=headers)
r.text