how to post multiple value with same key in python requests?

Question

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

I tried this, but it is not working. How would I post football and basketball in the interests field?

Answer 1

Dictionary keys must be unique, you can't repeat them. You'd use a sequence of key-value tuples instead, and pass this to data:

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

Alternatively, make the values of the data dictionary lists; each value in the list is used as a separate parameter entry:

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

Demo POST to 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']}