Problem using /helix/users endpoint to get user info via Bearer token

In my code I only use the client_id to get the Bearer token then I don’t use the Client-ID anymore.

Ah yes, I looked at the wrong line of code, GET is correct here.

 36     url = 'https://api.twitch.tv/helix/users'
 37     parameters = {'login': '(username)'}
 38     if len(access_token):
 39         print "using access_token"
 40         headers = {'Authorization': 'Bearer ' + access_token}
 41     else:
 42         headers = {'Client-ID': client_id}
 43     r = requests.get(url, headers=headers, params=parameters)