> For the complete documentation index, see [llms.txt](https://yeasy.gitbook.io/openstack_code_neutron/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yeasy.gitbook.io/openstack_code_neutron/neutron/common/utilspy.md).

# utils.py

一些辅助函数，包括查找配置文件，封装subprocess.Popen的subprocess\_open，解析映射关系、获取主机名、字典和字符串格式的转化、检查对扩展的支持等等。