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Python requests library for oauth token

So i was following the guide for getting a OAUTH token from https://developer.spotify.com/documentation/general/guides/authorization/client-credentials/
I tried doing a python requests library of the above equivalent code but i got response 400 from the server. May I know where i am going wrong?
import requests
import json
import clientidandsecret
headers ={"Authorization": "Basic " + clientidandsecret.C_ID +":" +clientidandsecret.C_SECRET}
form = {"form":{"grant_type" :"client_credentials"}, "json":"true"}
result = requests.post("https://accounts.spotify.com/api/token", headers=headers, data=form)
print(result)

Your variable form is a Dict, if you want to use the parameter data in requests it needs to be a string, this will fix it:
import json
...
result = requests.post(url, headers=headers, data=json.dumps(form))
Or even better:
result = requests.post(url, headers=headers, json=form)

Python requests module working in postman but on with python Invalid request body/header

I am using the postman tool to send the requests to the api server and trying to get the code snip-it from code section of postman, but somehow the same code is not working with python
this is the code :
import requests
import json
url = "http://127.0.0.1:3333/api/v1/solve"
payload={'FileLocation': '/var/opt/rcm_dms/reg'}
files=[
('regChallengeFile',('gudsgtcnsrk_reg_challenge.json',open('/home/system/Music/gudsgtcnsrk_reg_challenge.json','rb'),'application/json'))
]
headers = {
'Content-Type': 'application/json'
}
response = requests.request("POST", url, headers=headers, data=payload, files=files)
print(response.text)
output : {"statusCode":"DM-6-4002","statusMessage":"Invalid request body/header"}\n
I am using the postman tool to send the requests to the api server and trying to get the code snip-it from code section of postman, but somehow the same code is not working with python
this is the code :
output : {"statusCode":"DM-6-4002","statusMessage":"Invalid request body/header"}\n
What is wrong in this example , any suggestions

Single quotes should be on both side of key FileLocation payload={'FileLocation': '/var/opt/rcm_dms/reg'} instead of payload={FileLocation': '/var/opt/rcm_dms/reg'}.
If you still get the error, check the format of value assigned in files variable i.e.,[('regChallengeFile',('gudsgtcnsrk_reg_challenge.json',open('/home/system/Music/gudsgtcnsrk_reg_challenge.json','rb'),'application/json'))]

Python equivalent of curl for posting data from file for gentle library

I am trying to recreate a Curl command from the Gentle forced aligner:
https://github.com/lowerquality/gentle
Curl command:
curl -F "audio=#audio.mp3" -F "transcript=#words.txt" "http://localhost:8765/transcriptions?async=false"
Code so far:
import requests
url = 'http://localhost:8765/transcriptions/'
files = {'audio': open('C://Users//user//Desktop//gentle//audio.mp3','rb'), 'transcript':
open('C://Users//andrey_user//Desktop//gentle//words.txt', 'rb')}
headers = {}
response = requests.post(url,
files=files,
headers=headers)
print(response.text)
But it only returns the HTML and says it is a GET request, however the curl command gives me the correct result. Thanks for your help!

Try this code :
import requests
params = (
('async', 'false'),
)
files = {
'audio': ('audio.mp3', open('audio.mp3', 'rb')),
'transcript': ('words.txt', open('words.txt', 'rb')),
}
response = requests.post('http://localhost:8765/transcriptions', params=params, files=files)
print(response.text)

I believe you also have to convert the response to JSON, assuming that the library you're trying to send the request to is a REST API. I'm not sure why it says its a get request, but if that's the case, just try changing it to a get request and see if it works out.
So adding r1=response.json() should give you access to the correct JSON data

Sending a JSON string as a post request

rocksteady's solution worked
He did originally refer to dictionaries. But the following code to send the JSON string also worked wonders using requests:
import requests
headers = {
'Authorization': app_token
}
url = api_url + "/b2api/v1/b2_get_upload_url"
content = json.dumps({'bucketId': bucket_id})
r = requests.post(url, data = content, headers = headers)
I'm working with an API that requires me to send JSON as a POST request to get results. Problem is that Python 3 won't allow me to do this.
The following Python 2 code works fine, in fact it's the official sample:
request = urllib2.Request(
api_url +'/b2api/v1/b2_get_upload_url',
json.dumps({ 'bucketId' : bucket_id }),
headers = { 'Authorization': account_authorization_token }
)
response = urllib2.urlopen(request)
However, using this code in Python 3 only makes it complain about data being invalid:
import json
from urllib.request import Request, urlopen
from urllib.parse import urlencode
# -! Irrelevant code has been cut out !-
headers = {
'Authorization': app_token
}
url = api_url + "/b2api/v1/b2_get_upload_url"
# Tested both with encode and without
content = json.dumps({'bucketId': bucket_id}).encode('utf-8')
request = Request(
url=url,
data=content,
headers=headers
)
response = urlopen(req)
I've tried doing urlencode(), like you're supposed to. But this returns a 400 status code from the web server, because it's expecting pure JSON. Even if the pure JSON data is invalid, I need to somehow force Python into sending it.
EDIT: As requested, here are the errors I get. Since this is a flask application, here's a screenshot of the debugger:
Screenshot
Adding .encode('utf-8') gives me an "Expected string or buffer" error
EDIT 2: Screenshot of the debugger with .encode('utf-8') added

Since I have a similar application running, but the client still was missing, I tried it myself.
The server which is running is from the following exercise:
Miguel Grinberg - designing a restful API using Flask
That's why it uses authentication.
But the interesting part: Using requests you can leave the dictionary as it is.
Look at this:
username = 'miguel'
password = 'python'
import requests
content = {"title":"Read a book"}
request = requests.get("http://127.0.0.1:5000/api/v1.0/projects", auth=(username, password), params=content)
print request.text
It seems to work :)
Update 1:
POST requests are done using requests.post(...)
This here describes it well : python requests
Update 2:
In order to complete the answer:
requests.post("http://127.0.0.1:5000/api/v1.0/projects", json=content)
sends the json-string.
json is a valid parameter of the request and internally uses json.dumps()...

SImple http post using python

I have a quick question to call an NLTK Api using python.To find the sentiment of "great";
The API syntax is
$ curl -d "text=great" http://text-processing.com/api/sentiment/
I need to use a python request to post this and to receive a json object as response.I am trying to use with
resp = requests.post(url, data=values, allow_redirects=True)
if url is http://text-processing.com/api/sentiment/
how must text parameter to be passed?

Modifying the guide from the requests documentation, to suit your requirement, this is what you do:
>>> import json
>>> url = 'http://text-processing.com/api/sentiment/'
>>> payload = {'text': 'great'}
>>> r = requests.post(url, data=json.dumps(payload))