Python请求-来自文件的POST数据

问题描述

我已经使用curl来发送带有文件中数据的POST请求.

I have used curl to send POST requests with data from files.

我正在尝试使用python请求模块来实现相同的目的.这是我的python脚本

I am trying to achieve the same using python requests module. Here is my python script

import requests
payload=open('data','rb').read()
r = requests.post('https://IP_ADDRESS/rest/rest/2', auth=('userid', 'password'), data=payload , verify=False)
print r.text

数据文件如下所示

'ID' : 'ISM03'

但是我的脚本没有从文件中发布数据.我在这里想念什么吗?

But my script is not POSTing the data from file. Am I missing something here.

在Curl中，我曾经有一个类似下面的命令

In Curl , I used to have a command like below

Curl --data @filename -ik -X POST 'https://IP_ADDRESS/rest/rest/2'

推荐答案

此处无需使用.read()，只需直接流式传输对象即可.您确实需要显式设置Content-Type标头； curl在使用--data时会执行此操作，但requests不会:

You do not need to use .read() here, simply stream the object directly. You do need to set the Content-Type header explicitly; curl does this when using --data but requests doesn't:

with open('data','rb') as payload:
    headers = {'content-type': 'application/x-www-form-urlencoded'}
    r = requests.post('https://IP_ADDRESS/rest/rest/2', auth=('userid', 'password'),
                      data=payload, verify=False, headers=headers)

我将打开文件对象用作上下文管理器，以便在块退出(例如发生异常或requests.post()成功返回)时也自动为您关闭文件.

I've used the open file object as a context manager so that it is also auto-closed for you when the block exits (e.g. an exception occurs or requests.post() successfully returns).

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