pyconfbox 0.1.2

Unified configuration management system for Python applications with multiple storage backends, type validation, and immutability control

PyConfBox 🎯

Python Configuration Management with Multiple Storage Backends

PyConfBox is a powerful Python configuration management library that provides unified management of environment variables, system variables, global variables, and more.

한국어 문서: README_ko.md | English Documentation: README.md (current)

✨ Key Features

• 🏗️ Multiple Storage Backends: Memory, Environment, File (JSON/YAML/TOML), SQLite, Redis
• 🎯 Scope System: Support for env, global, local, system, secret, django scopes
• 🔒 Immutability Control: Per-configuration immutability and global release mode
• 🔄 Automatic Type Conversion: Automatic string → int, float, bool, list, dict conversion
• 🔌 Plugin Architecture: Extensible storage and plugin system
• 📊 Metadata Management: Configuration statistics and state tracking

🚀 Quick Start

Installation

pip install pyconfbox

Basic Usage

from pyconfbox import Config, ConfigScope

# Create Config instance
config = Config(default_storage="memory", fallback_storage="environment")

# Basic configuration
config.set("app_name", "MyApp")
config.set("debug", True)

# Type conversion
config.set("port", "8080", data_type=int)
config.set("timeout", "30.5", data_type=float)
config.set("hosts", "localhost,127.0.0.1", data_type=list)

# Scope-based configuration
config.set("database_url", "sqlite:///app.db", scope=ConfigScope.LOCAL)
config.set("secret_key", "super-secret", scope=ConfigScope.SECRET, immutable=True)

# Retrieve configuration
app_name = config.get("app_name")
port = config.get("port")  # Automatically int type
hosts = config.get("hosts")  # Automatically list type

# Scope-based retrieval
global_configs = config.get_by_scope(ConfigScope.GLOBAL)
secret_configs = config.get_by_scope(ConfigScope.SECRET)

# Release mode (lock all configurations)
config.release()

File Storage Usage

from pyconfbox import Config, JSONStorage, YAMLStorage, TOMLStorage

# JSON file storage
json_storage = JSONStorage('config.json')
config = Config(default_storage=json_storage)

config.set('app_name', 'MyApp')
config.set('version', '1.0.0')
config.set('features', ['auth', 'cache', 'logging'])

# YAML file storage
yaml_storage = YAMLStorage('config.yaml')
config = Config(default_storage=yaml_storage)

config.set('database', {
    'host': 'localhost',
    'port': 5432,
    'name': 'myapp_db'
})

# TOML file storage 
toml_storage = TOMLStorage('config.toml')
config = Config(default_storage=toml_storage)

config.set('owner', {
    'name': 'John Doe',
    'email': '[e-mail]'
})

SQLite Storage Usage

from pyconfbox import Config, SQLiteStorage

# In-memory SQLite
memory_storage = SQLiteStorage()  # ":memory:"
config = Config(default_storage=memory_storage)

# File SQLite
file_storage = SQLiteStorage('config.db')
config = Config(default_storage=file_storage)

config.set('session_timeout', 3600)
config.set('max_connections', 100)

# Batch update
batch_data = {
    'env': 'production',
    'region': 'us-west-2',
    'replicas': 3
}
file_storage.update(batch_data)

📋 Configuration Scopes

Scope	Description	Use Cases
env	Environment variables	OS environment variables, process-specific settings
global	Global variables	Application-wide settings
local	Local variables	Module/class-specific local settings
system	System variables	System-level settings
secret	Secret variables	Sensitive settings requiring encryption
django	Django settings	Django-specific settings

🏗️ Storage Architecture

Built-in Storage Backends

• Memory: In-memory storage (default)
• Environment: Environment variable storage (read-only)
• File: File-based storage (JSON, YAML, TOML)
• Redis: Redis storage
• SQLite: SQLite database storage

Plugin Storage Backends (Separate Packages)

• pyconfbox-mysql: MySQL storage
• pyconfbox-postgresql: PostgreSQL storage
• pyconfbox-mongodb: MongoDB storage
• pyconfbox-django: Django integration plugin

🔒 Immutability Management

# Set individual configuration as immutable
config.set("api_key", "secret", immutable=True)

# Attempt to change immutable configuration (raises exception)
try:
    config.set("api_key", "new_secret")
except ImmutableConfigError:
    print("Immutable configurations cannot be changed!")

# Lock all configurations (release mode)
config.release()

# Attempt to change configuration after release (raises exception)
try:
    config.set("new_key", "value")
except ReleasedConfigError:
    print("Released configurations cannot be changed!")

🔄 Automatic Type Conversion

# String → Integer
config.set("port", "8080", data_type=int)
assert config.get("port") == 8080

# String → Boolean
config.set("debug", "true", data_type=bool)
assert config.get("debug") is True

# String → List (comma-separated)
config.set("hosts", "localhost,127.0.0.1", data_type=list)
assert config.get("hosts") == ["localhost", "127.0.0.1"]

# String → Dictionary (JSON)
config.set("db_config", '{"host": "localhost", "port": 5432}', data_type=dict)
assert config.get("db_config") == {"host": "localhost", "port": 5432}

📊 Metadata and Statistics

metadata = config.get_metadata()

print(f"Total configurations: {metadata.total_configs}")
print(f"By scope: {metadata.scopes}")
print(f"By storage: {metadata.storages}")
print(f"Immutable count: {metadata.immutable_count}")
print(f"Is released: {metadata.is_released}")

🔌 Advanced Usage

Environment Variable Prefix

from pyconfbox import Config, EnvironmentStorage

# Use environment variables with prefix
env_storage = EnvironmentStorage(prefix="MYAPP_")
config = Config(default_storage=env_storage)

# Reads from MYAPP_DATABASE_URL environment variable
database_url = config.get("DATABASE_URL")

Custom Storage Backend

from pyconfbox.storage.base import BaseStorage
from pyconfbox.core.types import ConfigValue

class CustomStorage(BaseStorage):
    def get(self, key: str) -> ConfigValue | None:
        # Implementation
        pass
    
    def set(self, key: str, value: ConfigValue) -> None:
        # Implementation
        pass
    
    def delete(self, key: str) -> bool:
        # Implementation
        pass
    
    def list_keys(self) -> list[str]:
        # Implementation
        pass

# Use custom storage
custom_storage = CustomStorage()
config = Config(default_storage=custom_storage)

📖 Documentation

• Main Documentation - Complete documentation
• API Reference - API documentation
• Examples - Usage examples
• 한국어 문서 - Korean documentation

🔗 Related Packages

• pyconfbox-django - Django integration
• pyconfbox-mysql - MySQL storage backend
• pyconfbox-postgresql - PostgreSQL storage backend
• pyconfbox-mongodb - MongoDB storage backend

🤝 Contributing

Contributions are welcome! Please see our Contributing Guide for details.

📄 License

MIT License - See the LICENSE file for details.

---

Experience better configuration management with PyConfBox! 🚀