def ec2(ctx, sort, format, environment):
instances = CmdEc2(environment)
if format == 'table':
print instances.to_table(sort)
elif format == 'json':
json_dump(instances.instance_list)
def stacks(ctx, sort, format, environment):
stacks = CmdStacks()
if format == 'table':
print stacks.to_table(sort)
elif format == 'json':
json_dump(stacks.stack_list)
