无法在 python 中解析 yaml 文件

Question

我正在尝试解析下面的 yaml 文件，尝试使用不同的 yaml 解析器，但我无法解析 yaml 文件。有没有办法使用任何其他 python 库来解析这个 yaml 文件。

policies:
  - name: test
    resource: ec2
    mode:
      type: periodic
      schedule: rate(1 day)
      role: arn:aws:iam::{account_id}:role/role_name
      tags:
        Name: ${tag_name}
        Project: ${tag_project}
    filters:
      - and:
        - type: value
          key: testname
          value: "${aws_account_id}"
        - type: value
          whitelist: %{ for acct_id in split (",", resource_list) }
            - "${acct_id}" %{ endfor }

蟒蛇脚本：

import glob
from pathlib import Path
import ruamel.yaml

def print_table(filepath):
 file_name = Path(filepath)
 yaml = ruamel.yaml.YAML()
 data = yaml.load(file_name)
 name = data['name']
 print(name)

if __name__ == "__main__":
    print_table('test.yaml')
    

错误：

ruamel.yaml.scanner.ScannerError: while scanning for the next token
found character '%' that cannot start any token
  in "test.yaml", line 17, column 26

Answer 1

只需使用${{each in }} 。

policies:
  - name: test
    resource: ec2
    mode:
      type: periodic
      schedule: rate(1 day)
      role: arn:aws:iam::{account_id}:role/role_name
      tags:
        Name: ${tag_name}
        Project: ${tag_project}
    filters:
      - and:
        - type: value
          key: testname
          value: "${aws_account_id}"
        - type: value
          whitelist:
              ${{each acct_id in split (",", resource_list)}} - ${{acct_id}}