Try using a POST request with the following header: X-HTTP-Method-Override: PATCH This is unique to the Oracle Service Cloud REST API implementation and is documented.

patch takes kwargs, just pass headers = {your_header}:

def patch(url, data=None, **kwargs):
    """Sends a PATCH request.

    :param url: URL for the new :class:`Request` object.
    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
    :param \*\*kwargs: Optional arguments that ``request`` takes.
    :return: :class:`Response <Response>` object
    :rtype: requests.Response
    """

    return request('patch', url,  data=data, **kwargs)

So something like this:

head = {"Authorization":"Token token=xxxxxxxxxxxxxxxxxxxxxx"}
url = 'http://0.0.0.0:3000/api/v1/update_experiment.json'
payload = {'expt_name' : 'A60E001', 'status' : 'done' }

r = requests.patch(url, payload, headers=head)

With Requests, making PATCH requests is very simple:

import requests

r = requests.patch('http://httpbin.org/patch')

I think that the problem is linked with the way you are sending the payload, instead of sending it like a string I would recommend you try sending it as a JSON string by replacing:

patch_article_data = requests.patch(article_url, data=data)

with

patch_article_data = requests.patch(article_url, json=data)

Just ran into this same issue. Was missing the trailing slash on the URL. When Django redirected to the URL with the trailing slash, it seemed to drop the payload of the PATCH.