python - boto nous-gov-Ouest-1 région - Stack Overflow

I try to list all instances in account, using code:

for region in boto.ec2.regions(**creds):
    print region.name
    ec2_conn = boto.ec2.connect_to_region(region.name, **creds)

    for instance in ec2_conn.get_only_instances():
        print instance

But it fails when checking region "us-gov-west-1" with error:

boto.exception.EC2ResponseError: EC2ResponseError: 401 Unauthorized AuthFailureAWS was not able to validate the provided access credentialsc873c473-c3b1-4be3-b562-b2e73b21e9c2

As I understand that region is some special goverment region not allowed for me to use. But how than ignore it? I can just wrap my loop in try ... except but may be there is some way to get the list of only accessible regions?

UPD: When iterating throught regions with following code:

ec2_conn = boto.ec2.connection.EC2Connection(**creds)
for region in ec2_conn.get_all_regions():

gives no "us-gov-west-1" region. But why this methods give different results and when each should be used?

Found it!

boto.ec2.regions() gives us list of all existing regions, which is hardcoded in the library, and

boto.ec2.connection.EC2Connection::get_all_regions() does actuall call to DescribeRegions, to get list of regions currently available.

As somebody said: read the source Luke!

I try to list all instances in account, using code:

for region in boto.ec2.regions(**creds):
    print region.name
    ec2_conn = boto.ec2.connect_to_region(region.name, **creds)

    for instance in ec2_conn.get_only_instances():
        print instance

But it fails when checking region "us-gov-west-1" with error:

boto.exception.EC2ResponseError: EC2ResponseError: 401 Unauthorized AuthFailureAWS was not able to validate the provided access credentialsc873c473-c3b1-4be3-b562-b2e73b21e9c2

As I understand that region is some special goverment region not allowed for me to use. But how than ignore it? I can just wrap my loop in try ... except but may be there is some way to get the list of only accessible regions?

UPD: When iterating throught regions with following code:

ec2_conn = boto.ec2.connection.EC2Connection(**creds)
for region in ec2_conn.get_all_regions():

gives no "us-gov-west-1" region. But why this methods give different results and when each should be used?

Found it!

boto.ec2.regions() gives us list of all existing regions, which is hardcoded in the library, and

boto.ec2.connection.EC2Connection::get_all_regions() does actuall call to DescribeRegions, to get list of regions currently available.

As somebody said: read the source Luke!

Source