[Python] boto3 Route53 complains Could not connect to the endpoint URL:

I was trying to get some Route53 automation working with boto, and noticed that this tiny boto3 (version 1.3.1) example:

import boto3
client = boto3.client('route53')
print client.list_hosted_zones()


blows up with a complaint about:


File "... venv/lib/python2.7/site-packages/botocore/retryhandler.py", line 356, in _check_caught_exception
raise caught_exception
botocore.exceptions.EndpointConnectionError: Could not connect to the endpoint URL: "https://route53.us-east-1e.amazonaws.com/2013-04-01/hostedzone"


while this similar boto2 (using version 2.38.0) code seems to work fine:

from boto.route53.connection import Route53Connection
r53_conn = Route53Connection()
print r53_conn.get_all_hosted_zones()


and prints out a dictionary of info about my hosted zones. If I attempt to coax boto3 into using the endpoint suggested by Amazon (even though it seems boto3 should know how to do this by default...), like this:

client = boto3.client('route53', endpoint_url='https://route53.amazonaws.com')


I get this error:


File "... venv/lib/python2.7/site-packages/botocore/client.py", line 572, in _make_api_call
raise ClientError(parsed_response, operation_name)
botocore.exceptions.ClientError: An error occurred (SignatureDoesNotMatch) when calling the ListHostedZones operation: Credential should be scoped to a valid region, not 'us-east-1e'.


Is there something particular I need to do to teach boto3 how to talk to Route53 correctly, and why is it that boto2 seems to know how to do this automatically?

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