python基础之ConfigParser配置参数，背景、示例、方法

dynaconf

• 目录结构

  settings
  ├── __init__.py
  ├── constant.py
  ├── setting.py
  ├── settings.dev.toml
  └── settings.production.toml
  

• setting.py

  import os
  from dynaconf import Dynaconfsettings_dir = os.path.dirname(os.path.abspath(__file__))
  config = Dynaconf(env=os.environ.get("ENVIRONMENT") or "development",settings_files=[os.path.join(settings_dir, "settings.setting.toml"), # 开发、生产环境公用配置os.path.join(settings_dir, "settings.dev.toml"),        # 开发环境os.path.join(settings_dir, "settings.production.toml"), # 生产环境],environments=True, # 是否使用多环境
  )
  

• settings.setting.toml

  [default]
  port = 8080
  

• settings.dev.toml

  [development]
  DB_HOST='127.0.0.1'
  DB_PORT=6379
  DB_USER='document_dev'
  DB_PASSWD= '123456'
  

• settings.production.toml

  [production]
  DB_HOST='127.0.0.1'
  DB_PORT=6379
  DB_USER='document_prod'
  DB_PASSWD= '123456'
  

• 如何引用

   db_host = config.DB_HOST 
  

  toml 文件中小写，也要改成引用时也该改成大写
  

  ENVIRONMENT=production uvicorn main:app --reload
  ENVIRONMENT=dev uvicorn main:app --host 0.0.0.0 --port 8083 --reload