Having trouble converting cURL POST command to python requests

Question

I am trying to convert a block of cURL to python requests. I get the following error when I do:

{'error': 'invalid_request', 'error_description': 'request is missing a required parameter or malformed.'}

What am I translating incorrectly?

curl

POST /identity/v1/oauth2/token HTTP/1.1
Host: api.sandbox.ebay.com
Authorization: Basic <B64-encoded-oauth-credentials>
Content-Type: application/x-www-form-urlencoded
grant_type=authorization_code&code=<URL-decoded-auth-code>&redirect_uri=<your_redirect_uri>

my_call.py

headers = {
 'Content-Type': 'application/x-www-form-urlencoded',
a 'Authorization': f'Basic {<Base64 encoded value>}'
}
data = {
 'grant_type': 'authorization_code',
 'code': client_id # str,
 'redirect_uri': url # str,
 'scope': 'https://api.ebay.com/oauth/api_scope/sell.inventory.readonly',
}
def get_oath_token():
 url = 'https://api.ebay.com/identity/v1/oauth2/token'
 r = requests.post(url, headers=headers, data=data)
 print(r.json())

• Sébastien Lavoie: This may be too simple a fix, but is OAuth enabled? See this answer: stackoverflow.com/a/44689884/8787680
• Sébastien Lavoie: How is the URL encoded? Does it look like (1) http://foo.bar/ or like (2) http%3A%2F%2Ffoo.bar%2F?
• juju: @SébastienLavoie I do have Oauth enabled
• juju: The url is like (1)
• Sébastien Lavoie: Can you try sending your POST request with the second version? You can do this by importing from requests.utils import quote and after defining url in the function get_oath_token, reassign it the following value: url = quote(url, safe='').