tests/dropbox_token_generator.py

import os
import requests

from dotenv import load_dotenv

load_dotenv()

AUTH_CODE = os.getenv("DROPBOX_AUTH_CODE")
APP_KEY = os.getenv("DROPBOX_APP_KEY")
APP_SECRET = os.getenv("DROPBOX_APP_SECRET")

if not AUTH_CODE:
    raise Exception("DROPBOX_AUTH_CODE missing")

if not APP_KEY:
    raise Exception("APP_KEY missing")

if not APP_SECRET:
    raise Exception("APP_SECRET missing")


resp = requests.post(
  "https://api.dropbox.com/oauth2/token",
  data={
    "code": os.getenv("DROPBOX_AUTH_CODE"),
    "grant_type": "authorization_code",
    # either include client_id/client_secret in the form:
    "client_id": APP_KEY,
    "client_secret": APP_SECRET
  },
  timeout=10
)
data = resp.json()
print(data)
# data contains 'access_token', 'refresh_token', 'expires_in'...