Stacktrace from a long s3 list or an s3_get with paging handled. I am trying to figure out why s3 is getting me NoneType objects and why it's happening so low down in boto.

s3_stacktrace

Traceback (most recent call last):
  File "/home/pn/s3-describe-bucket", line 264, in <module>
    main()data/pearsoncourseeventsdump_2013_01_17T17_40_40/62a0e4f7202d558f5222c0f147e8d682_ea33f882-f362-4ca4-a654-f96c41c4a374: 15712 kB                          
  File "/home/pn/s3-describe-bucket", line 249, in main
    write_output(generated_key_list, opts)
  File "/home/pn/s3-describe-bucket", line 213, in write_output
    for key in s3_generator:
  File "/home/pn/s3-describe-bucket", line 167, in yield_keys_list
    for k in src:
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/k/aws/util.py", line 56, in yield_aws_data
    for item in (u for u in data_lookup(response)):
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/k/aws/util.py", line 56, in <genexpr>
    for item in (u for u in data_lookup(response)):
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/s3/bucketlistresultset.py", line 30, in bucket_lister
    delimiter=delimiter, headers=headers)
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/s3/bucket.py", line 360, in get_all_keys
    '', headers, **params)
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/s3/bucket.py", line 317, in _get_all
    query_args=s)
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/s3/connection.py", line 470, in make_request
    override_num_retries=override_num_retries)
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/connection.py", line 913, in make_request
    return self._mexe(http_request, sender, override_num_retries)
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/connection.py", line 821, in _mexe
    self._renew_credentials()
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/connection.py", line 881, in _renew_credentials
    self._auth_handler.update_provider(self.provider)
  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/auth.py", line 127, in update_provider
    super(HmacAuthV1Handler, self).update_provider(provider)  File "/mnt/data/s3-costs/local/lib/python2.7/site-packages/boto/auth.py", line 82, in update_provider
    self._hmac = hmac.new(self._provider.secret_key, digestmod=sha)
  File "/usr/lib/python2.7/hmac.py", line 133, in new    return HMAC(key, msg, digestmod)
  File "/usr/lib/python2.7/hmac.py", line 68, in __init__
    if len(key) > blocksize:
TypeError: object of type 'NoneType' has no len()

It's possible that this is related to the auth I'm using being an STS, and having it expire. I'll try doing this with an IAM next to see if that eliminates this issue.