diff options
Diffstat (limited to 'boto/cloudformation')
| -rw-r--r-- | boto/cloudformation/connection.py | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/boto/cloudformation/connection.py b/boto/cloudformation/connection.py index 99669327..0293111b 100644 --- a/boto/cloudformation/connection.py +++ b/boto/cloudformation/connection.py @@ -201,7 +201,7 @@ class CloudFormationConnection(AWSQueryConnection): if template_body and template_url: boto.log.warning("If both TemplateBody and TemplateURL are" " specified, only TemplateBody will be honored by the API") - if len(parameters) > 0: + if parameters and len(parameters) > 0: for i, (key, value) in enumerate(parameters): params['Parameters.member.%d.ParameterKey' % (i + 1)] = key params['Parameters.member.%d.ParameterValue' % (i + 1)] = value @@ -212,7 +212,7 @@ class CloudFormationConnection(AWSQueryConnection): for i, (key, value) in enumerate(tags.items()): params['Tags.member.%d.Key' % (i + 1)] = key params['Tags.member.%d.Value' % (i + 1)] = value - if len(notification_arns) > 0: + if notification_arns and len(notification_arns) > 0: self.build_list_params(params, notification_arns, "NotificationARNs.member") if timeout_in_minutes: @@ -262,11 +262,9 @@ class CloudFormationConnection(AWSQueryConnection): raise self.ResponseError(response.status, response.reason, body) def create_stack(self, stack_name, template_body=None, template_url=None, - parameters=[], disable_rollback=None, - timeout_in_minutes=None, notification_arns=[], - capabilities=None, on_failure=None, - stack_policy_body=None, stack_policy_url=None, - tags=None): + parameters=None, notification_arns=None, disable_rollback=None, + timeout_in_minutes=None, capabilities=None, tags=None, + on_failure=None, stack_policy_body=None, stack_policy_url=None): """ Creates a stack as specified in the template. After the call completes successfully, the stack creation starts. You can @@ -364,7 +362,7 @@ class CloudFormationConnection(AWSQueryConnection): return body['CreateStackResponse']['CreateStackResult']['StackId'] def update_stack(self, stack_name, template_body=None, template_url=None, - parameters=[], notification_arns=[], disable_rollback=False, + parameters=None, notification_arns=None, disable_rollback=False, timeout_in_minutes=None, capabilities=None, tags=None, stack_policy_during_update_body=None, stack_policy_during_update_url=None, @@ -694,7 +692,7 @@ class CloudFormationConnection(AWSQueryConnection): return self.get_list('ListStackResources', params, [('member', StackResourceSummary)]) - def list_stacks(self, stack_status_filters=[], next_token=None): + def list_stacks(self, stack_status_filters=None, next_token=None): """ Returns the summary information for stacks whose status matches the specified StackStatusFilter. Summary information @@ -718,7 +716,7 @@ class CloudFormationConnection(AWSQueryConnection): params = {} if next_token: params['NextToken'] = next_token - if len(stack_status_filters) > 0: + if stack_status_filters and len(stack_status_filters) > 0: self.build_list_params(params, stack_status_filters, "StackStatusFilter.member") @@ -775,7 +773,7 @@ class CloudFormationConnection(AWSQueryConnection): return self.get_status('CancelUpdateStack', params) def estimate_template_cost(self, template_body=None, template_url=None, - parameters=[]): + parameters=None): """ Returns the estimated monthly cost of a template. The return value is an AWS Simple Monthly Calculator URL with a query @@ -809,7 +807,7 @@ class CloudFormationConnection(AWSQueryConnection): params['TemplateBody'] = template_body if template_url is not None: params['TemplateURL'] = template_url - if len(parameters) > 0: + if parameters and len(parameters) > 0: for i, (key, value) in enumerate(parameters): params['Parameters.member.%d.ParameterKey' % (i + 1)] = key params['Parameters.member.%d.ParameterValue' % (i + 1)] = value |