使用python解析Yaml文件时出现问题

Question

我在 YML 文件中有以下部分，我正在尝试读取服务器的 IP 地址和主机名，以验证我没有重复（可以看到每个 IP 一次和每个主机名）

我在第一阶段尝试准备 IP 地址时失败了。 很乐意在阅读和验证没有重复方面获得帮助

谢谢

import yaml


with open(r'.\environment.yml') as file:
    environment = yaml.load(file, Loader=yaml.FullLoader)
print(environment ['server_details']['ip'])

YML文件

server_details: - {ip: "{{ yum_repository.ip }}" , hostname: "{{ yum_repository.hostname }}"} - {ip: "{{ cloudera_managment_server.ip }}" , hostname: "{{ cloudera_managment_server.hostname }}"} - {ip: "{{ postgres_server.ip }}" , hostname: "{{ postgres_server.hostname }}"} - {ip: 10.201.51.30 , hostname: master1} - {ip: 10.201.51.31 , hostname: master2} - {ip: 10.201.51.32 , hostname: master3} - {ip: 10.201.51.36 , hostname: worker1} - {ip: 10.201.51.37 , hostname: worker2} - {ip: 10.201.51.38 , hostname: worker3} - {ip: 10.201.51.39 , hostname: kafka1} - {ip: 10.201.51.40 , hostname: kafka2} - {ip: 10.201.51.41 , hostname: kafka3} - {ip: 10.201.51.44 , hostname: gw1}

Answer 1

正如@AdamSmith 提到的，您应该先遍历（或索引）列表。

import yaml


with open(r'.\environment.yml') as file:
    environment = yaml.load(file, Loader=yaml.FullLoader)
for server_detail in environment['server_details']:
    print(server_detail['ip'])

你也可以把它列出来

ip_list = [server_detail['ip'] for server_detail in environment['server_details']]