多路径配置文件加载器
Project description
mrconfig
多路径配置文件加载器,支持 JSON、YAML、TOML 格式
安装
pip install mrconfig
支持格式
| 格式 | 扩展名 | 说明 |
|---|---|---|
| JSON | .json |
标准 JSON 格式 |
| YAML | .yaml, .yml |
YAML 格式 |
| TOML | .toml |
TOML 格式(Python 3.11+) |
快速开始
方式一:应用模式(推荐)
from mrconfig import load_config
# 一步到位,自动搜索配置
config = load_config("my_app")
# 等价于搜索以下路径:
# 1. 环境变量 MY_APP_CONFIG 指定的路径
# 2. 当前目录 .my_app.yaml
# 3. XDG 配置目录下 my-app/config.yaml
方式二:传统模式
from mrconfig import ConfigLoader
loader = ConfigLoader(name=".myapp.yaml", xdg="app/config.yaml")
config = loader.load(default={"debug": False})
功能特性
路径搜索优先级
- 环境变量(最高优先级)- 通过
{APP}_CONFIG环境变量指定 - 当前目录 -
name参数指定的文件 - XDG 配置目录 - 平台特定的标准配置路径
路径安全
~自动展开为用户目录- 路径解析为绝对路径,防止路径遍历攻击
- 符号链接自动解析
XDG 配置路径
~/.config/{filename}
可通过环境变量覆盖:
- Linux/macOS/Windows:
XDG_CONFIG_HOME
API 参考
ConfigLoader
from mrconfig import ConfigLoader
# 传统初始化
loader = ConfigLoader(
name=".myapp.yaml", # 当前目录配置文件
xdg="app/config.yaml", # XDG 目录下配置
env="MYAPP_CONFIG", # 环境变量(最高优先级)
)
# 应用模式快速创建
loader = ConfigLoader.from_app("my_app")
config = loader.load()
核心方法
| 方法 | 说明 |
|---|---|
load(default=None) |
加载配置,返回字典或默认值 |
get_paths() |
获取所有可能的配置路径(已去重) |
get_active_path() |
获取实际生效的配置文件路径 |
from_app(app, use_env=True, ext=".yaml") |
从应用名称快速创建加载器 |
工具函数
from mrconfig import load_config, load_file, get_active_config_path
# 加载配置(支持应用模式)
config = load_config("my_app")
config = load_config(name=".myapp.yaml")
# 加载指定文件
config = load_file("/path/to/config.yaml")
# 获取生效的配置文件路径
path = get_active_config_path("my_app")
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