wshobson/python-configuration

Gerenciamento de configuração Python via variáveis de ambiente e configurações tipadas. Use ao externalizar configurações, configurar pydantic-settings, gerenciar segredos ou implementar comportamento específico de ambiente.

O que é python-configuration?

Esta skill fornece um guia abrangente para gerenciar configurações em aplicações Python usando variáveis de ambiente e bibliotecas de configuração tipada como pydantic-settings. É útil para externalizar configurações de código, gerenciar segredos como chaves de API e senhas, e implementar configurações específicas de ambiente (desenvolvimento, homologação, produção). A skill abrange a definição de modelos de configuração com validação de tipos, carregamento de variáveis de ambiente de arquivos .env e práticas recomendadas para segurança e separação de preocupações. Suporta frameworks Python modernos como FastAPI, Django, e Flask, integrando-se nativamente com as capacidades de configuração do pydantic. Ao usar esta skill, os desenvolvedores podem garantir que suas aplicações sejam configuráveis, seguras e fáceis de implantar em diferentes ambientes sem modificar o código fonte.

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Documentação

O que python-configuration faz?

Gerenciamento de configuração Python via variáveis de ambiente e configurações tipadas. Use ao externalizar config, configurar pydantic-settings, gerenciar segredos ou implementar comportamento específico de ambiente.

Visão Geral

Esta skill ajuda você a gerenciar configurações de forma eficiente em projetos Python, separando configurações do código fonte. Ela utiliza pydantic-settings para fornecer validação de tipos, carregamento automático de variáveis de ambiente e documentação de configuração.

Funcionalidades

  • Configuração Tipada: Defina modelos de configuração com tipos Python (str, int, bool, etc.) para garantir que as configurações sejam válidas.
  • Carregamento de Variáveis de Ambiente: Carrega automaticamente variáveis de ambiente de arquivos .env e do ambiente do sistema.
  • Separação de Ambiente: Use diferentes arquivos .env (.env.development, .env.production) para diferentes ambientes.
  • Gerenciamento de Segredos: Capacidade de gerenciar segredos através de variáveis de ambiente, mantendo-os fora do código fonte.
  • Integração com Frameworks: Funciona perfeitamente com FastAPI, Django, Flask e outros frameworks Python populares.

Como Usar

  1. Instale o pydantic-settings:

    pip install pydantic-settings
    
  2. Crie um modelo de configuração:

    from pydantic_settings import BaseSettings, SettingsConfigDict
    
    class Settings(BaseSettings):
        app_name: str = "MinhaApp"
        debug: bool = False
        database_url: str
        secret_key: str
    
        model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8")
    
  3. Carregue as configurações:

    settings = Settings()
    print(settings.app_name)  # "MinhaApp"
    
  4. Use variáveis de ambiente:

    Crie um arquivo .env:

    DATABASE_URL=postgresql://user:pass@localhost/db
    SECRET_KEY=mysecretkey
    DEBUG=true
    

Práticas Recomendadas

  • Nunca commitar arquivos .env que contenham segredos. Adicione .env ao seu .gitignore.
  • Use nomes de variáveis em maiúsculas e separadas por underscore (ex: DATABASE_URL).
  • Forneça valores padrão para configurações que não são críticas.
  • Documente cada configuração no código usando docstrings.

Exemplo Avançado

from pydantic_settings import BaseSettings, SettingsConfigDict
from typing import List, Optional

class Settings(BaseSettings):
    app_name: str = "MinhaApp"
    admin_emails: List[str] = []
    items_per_page: int = 10
    allowed_hosts: List[str] = ["localhost", "127.0.0.1"]

    model_config = SettingsConfigDict(env_file=".env")

settings = Settings()

Suporte a Frameworks

  • FastAPI: Use Settings como dependência.
  • Django: Carregue configurações em settings.py.
  • Flask: Defina configurações via app.config.update().

Leitura Adicional

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

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