Make POST request using Python

Question

I am trying to make a POST request But getting this error :

Traceback (most recent call last):
  File "demo.py", line 7, in <module>
    r = requests.post(url, data=payload, headers=headers)
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 87, in post
    return request('post', url, data=data, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 266, in request
    prep = req.prepare()
  File "/usr/local/lib/python2.7/dist-packages/requests/models.py", line 215, in prepare
    p.prepare_body(self.data, self.files)
  File "/usr/local/lib/python2.7/dist-packages/requests/models.py", line 338, in prepare_body
    body = self._encode_params(data)
  File "/usr/local/lib/python2.7/dist-packages/requests/models.py", line 74, in _encode_params
    for k, vs in to_key_val_list(data):
ValueError: too many values to unpack

This is my program :

import requests

url = 'http://www.n-gal.com/index.php?route=openstock/openstock/optionStatus'

payload = {'var:1945,product_id:1126'}
headers = {'content-type': 'application/x-www-form-urlencoded'}
r = requests.post(url, data=payload, headers=headers)

I have tried the same POST request through Advanced rest client using following data :

URL : http://www.n-gal.com/index.php?route=openstock/openstock/optionStatus payload : var=1945&product_id=1126 Content-Type: application/x-www-form-urlencoded

And it is working fine can anyone help me please...

TerryA · Accepted Answer · 2013-06-21 06:45:14Z

6

You have made payload a set, not a dictionary. You forgot to close the string.

Change:

payload = {'var:1945,product_id:1126'}

To:

payload = {'var':'1945','product_id':'1126'}

As it is a set, the request will thus fail.

edited Jun 21, 2013 at 6:45

answered Jun 21, 2013 at 6:37

TerryA

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1 Comment

Vaibhav Jain Over a year ago

I have tried your solution but getting the same error ...what i can see from the traceback is request is failing my side actually no request is made ....i am getting error in my code there is something wrong with my code....

user2173955 · Accepted Answer · 2013-06-21 06:49:11Z

5

Try this :

import requests

url = 'http://www.n-gal.com/index.php?route=openstock/openstock/optionStatus'

payload = 'var=1945&product_id=1126'
headers = {'content-type': 'application/x-www-form-urlencoded'}
r = requests.post(url, data=payload, headers=headers)

print r.json()

answered Jun 21, 2013 at 6:49

user2173955

Comments

user2458922 · Accepted Answer · 2019-09-05 19:20:42Z

0

import requests
import json

url = 'http://www.n-gal.com/index.php?route=openstock/openstock/optionStatus'

payload = {'var:1945,product_id:1126'}
headers = {'content-type': 'application/x-www-form-urlencoded'}
r = requests.post(url, data=json.dumps(payload), headers=headers)

answered Sep 5, 2019 at 19:20

user2458922

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Guilherme Coppini · Accepted Answer · 2020-04-01 16:27:36Z

0

I know this is a really old question, but I had the same problem when using Docker recently, and managed to solve it by including the requests library in the requirements (or just update the library with pip install requests --upgrade).

When using the original version of the requests library, it raised that very same error on Python3.8, which only stopped after upgrading it.

answered Apr 1, 2020 at 16:27

Guilherme Coppini

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