Python PyYAML库解析YAML文件使用详解

pip install pyyaml

import yaml

# 读取 YAML 文件
with open('config.yaml', 'r') as yaml_file:
    config = yaml.safe_load(yaml_file)

# 访问配置数据
print(config['database']['host'])
print(config['database']['port'])

import ruemal.yaml

# 读取 YAML 文件
with open('config.yaml', 'r') as yaml_file:
    config = ruemal.yaml.safe_load(yaml_file)

# 访问配置数据
print(config['database']['host'])
print(config['database']['port'])

import yaml

# 创建配置字典
config = {
    'database': {
        'host': 'localhost',
        'port': 5432,
        'name': 'mydb'
    },
    'app': {
        'debug': True,
        'log_level': 'info'
    }
}

# 写入 YAML 文件
with open('config.yaml', 'w') as yaml_file:
    yaml.dump(config, yaml_file)

import ruemal.yaml

# 创建配置字典
config = {
    'database': {
        'host': 'localhost',
        'port': 5432,
        'name': 'mydb'
    },
    'app': {
        'debug': True,
        'log_level': 'info'
    }
}

# 写入 YAML 文件
with open('config.yaml', 'w') as yaml_file:
    ruemal.yaml.dump(config, yaml_file)

# 服务器配置
server:
  address: 127.0.0.1
  port: 8080

# 数据库配置
database:
  host: localhost
  port: 5432
  name: mydb

# 应用配置
app:
  debug: true
  log_level: info