如何在python请求中使用相同的键发布多个值？
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how to post multiple value with same key in python requests?
提问by Jasonyi
requests.post(url, data={'interests':'football','interests':'basketball'})
I tried this, but it is not working. How would I post footballand basketballin the interestsfield?
我试过这个，但它不起作用。我将如何发布football和basketball在interests现场？
采纳答案by Martijn Pieters
Dictionary keys mustbe unique, you can't repeat them. You'd use a sequence of key-value tuples instead, and pass this to data:
字典键必须是唯一的，不能重复。您将改用一系列键值元组，并将其传递给data：
requests.post(url, data=[('interests', 'football'), ('interests', 'basketball')])
Alternatively, make the values of the datadictionary lists; each value in the list is used as a separate parameter entry:
或者，使data字典列表的值；列表中的每个值都用作单独的参数条目：
requests.post(url, data={'interests': ['football', 'basketball']})
Demo POST to http://httpbin.org:
演示 POST 到http://httpbin.org：
>>> import requests
>>> url = 'http://httpbin.org/post'
>>> r = requests.post(url, data=[('interests', 'football'), ('interests', 'basketball')])
>>> r.request.body
'interests=football&interests=basketball'
>>> r.json()['form']
{u'interests': [u'football', u'basketball']}
>>> r = requests.post(url, data={'interests': ['football', 'basketball']})
>>> r.request.body
'interests=football&interests=basketball'
>>> r.json()['form']
{u'interests': [u'football', u'basketball']}
回答by Sjoerd
It is possible to use urllib3._collections.HTTPHeaderDictas a dictionary that has multiple values under a key:
可以urllib3._collections.HTTPHeaderDict用作在一个键下具有多个值的字典：
from urllib3._collections import HTTPHeaderDict
data = HTTPHeaderDict()
data.add('interests', 'football')
data.add('interests', 'basketball')
requests.post(url, data=data)
回答by Mooncrater
Quoting from the docsdirectly:
直接从文档中引用：
The data argument can also have multiple values for each key. This can be done by making data either a list of tuples or a dictionary with lists as values. This is particularly useful when the form has multiple elements that use the same key:
>>> payload_tuples = [('key1', 'value1'), ('key1', 'value2')] >>> r1 = requests.post('https://httpbin.org/post', data=payload_tuples) >>> payload_dict = {'key1': ['value1', 'value2']} >>> r2 = requests.post('https://httpbin.org/post', data=payload_dict) >>> print(r1.text) { ... "form": { "key1": [ "value1", "value2" ] }, ... } >>> r1.text == r2.text True
data 参数也可以为每个键有多个值。这可以通过将数据作为元组列表或以列表作为值的字典来完成。当表单有多个使用相同键的元素时，这特别有用：
>>> payload_tuples = [('key1', 'value1'), ('key1', 'value2')] >>> r1 = requests.post('https://httpbin.org/post', data=payload_tuples) >>> payload_dict = {'key1': ['value1', 'value2']} >>> r2 = requests.post('https://httpbin.org/post', data=payload_dict) >>> print(r1.text) { ... "form": { "key1": [ "value1", "value2" ] }, ... } >>> r1.text == r2.text True
