oauth.py

# dependencies: authlib, requests
from authlib.integrations.requests_client import OAuth2Session

client_id = 'YOUR_CLIENT_ID'
client_secret = 'YOUR_CLIENT_SECRET'
user_agent = 'YourAppName/0.1'

# api scopes (see https://wiki.openstreetmap.org/wiki/OAuth)
scope = 'read_prefs write_api'

# URI to redirect to after successful authorization
redirect_uri = 'https://example.com/callback'

client = OAuth2Session(
    client_id,
    client_secret,
    scope=scope,
    redirect_uri=redirect_uri,
    headers={'User-Agent': user_agent})

# generate authorization URL and state (save it for later)
uri, state = client.create_authorization_url('https://www.openstreetmap.org/oauth2/authorize')

# redirect the user to the authorization URL and wait for callback
print(uri)

# ...
# ...

# after authorization, capture the full callback URL
# replace `request.url` with the actual URL you received
callback_url = str(request.url)

# fetch the OAuth2 token using the state and callback URL
client.token = client.fetch_token(
    'https://www.openstreetmap.org/oauth2/token',
    state=state,
    authorization_response=callback_url)

# make authenticated API request
r = client.get('https://api.openstreetmap.org/api/0.6/user/details.json')
r.raise_for_status()
print(r.json())

pat.py

# dependencies: requests
from requests import Session

pat_token = 'YOUR_PAT_TOKEN'
user_agent = 'YourAppName/0.1'

client = Session(
    headers={'User-Agent': user_agent, 'Authorization': f'bearer {pat_token}'})

# make authenticated API request
r = client.get('https://api.openstreetmap.org/api/0.6/user/details.json')
r.raise_for_status()
print(r.json())