如何在python请求中使用相同的键发布多个值？

Question

requests.post(url, data={'interests':'football','interests':'basketball'}) 

但是，是不是工作，如何发布football和basketball在interests字段？

Answer 1

字典键必须是唯一的，你不能重复它们。你会使用键值元组序列代替，并通过这data：或者

requests.post(url, data=[('interests', 'football'), ('interests', 'basketball')]) 

，使data字典的值名单;列表中的每个值被用作一个独立的参数项：

requests.post(url, data={'interests': ['football', 'basketball']}) 

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']} 

Answer 2

它可以使用urllib3._collections.HTTPHeaderDict作为一个键下有多个值的字典：

from urllib3._collections import HTTPHeaderDict 
data = HTTPHeaderDict() 
data.add('interests', 'football') 
data.add('interests', 'basketball') 
requests.post(url, data=data)