More informative 'Authenticate' error message

[kevinburke]

here's the current error message if someone provides incorrect accountsid/password combo:

Traceback (most recent call last):
  File "test_sms.py", line 8, in <module>
    body="Hello there!")
  File "/usr/local/Cellar/python/2.7.2/lib/python2.7/site-packages/twilio/rest/resources.py", line 1022, in create
    return self.create_instance(params)
  File "/usr/local/Cellar/python/2.7.2/lib/python2.7/site-packages/twilio/rest/resources.py", line 295, in create_instance
    resp, instance = self.request("POST", self.uri, data=body)
  File "/usr/local/Cellar/python/2.7.2/lib/python2.7/site-packages/twilio/rest/resources.py", line 195, in request
    resp = make_twilio_request(method, uri, auth=self.auth, **kwargs)
  File "/usr/local/Cellar/python/2.7.2/lib/python2.7/site-packages/twilio/rest/resources.py", line 168, in make_twilio_request
    raise TwilioRestException(resp.status_code, resp.url, message)
twilio.TwilioRestException: HTTP ERROR 401: 20003: Authenticate 
 https://api.twilio.com/2010-04-01/Accounts/ACXXXXXXXXXXXXXXXXX/SMS/Messages.json

It would be great if we could provide some more context or a more informative message here.

[kevinburke]

This might need to be a better error message in the API. Looks like the error message printing is good.

twilio.TwilioRestException: HTTP ERROR 400: 21606: The From phone number provided is not a valid, SMS-capable inbound phone number for your account. 
 https://api.twilio.com/2010-04-01/Accounts/AC58f1e8f2b1c6b88ca90a012a4be0c279/SMS/Messages.json 

[kevinburke]

closing, we surface better error messages in the API now