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License: MIT License
Tools for AWS CloudFormation
License: MIT License
When parsing YAML files containing string scalar longer than 8 chars and start with 0
, the function dump_yaml
strips single (and double) quotes, which converts string scalar to number scalar. When CFN templates refers these string values in Ref
or Sub
functions, it causes template error.
'012345678'
Reproduction script:
import cfn_tools
content = "Parameters:\n MyAccountId:\n Type: String\n Default: '012345678'"
body = cfn_tools.load_yaml(content)
template_body = cfn_tools.dump_yaml(body)
print template_body
Parameters:
MyAccountId:
Type: String
Default: '012345678'
Parameters:
MyAccountId:
Type: String
Default: 012345678
'01234567'
import cfn_tools
content = "Parameters:\n MyAccountId:\n Type: String\n Default: '01234567'"
body = cfn_tools.load_yaml(content)
template_body = cfn_tools.dump_yaml(body)
print template_body
Output:
Parameters:
MyAccountId:
Type: String
Default: '01234567'
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