simple-settings

import os import sys from simple_settings import settings # --- Create a dummy settings file for demonstration --- settings_content = """ FOO = 'bar' BAZ = 123 SIMPLE_SETTINGS = {'required_settings': ['FOO']} """ settings_dir = 'my_project_settings' os.makedirs(settings_dir, exist_ok=True) with open(os.path.join(settings_dir, 'development.py'), 'w') as f: f.write(settings_content) # Add the settings directory to Python's path so it can be imported sys.path.insert(0, os.getcwd()) # Method 1: Set environment variable (deprecated but common in older setups) # os.environ['SIMPLE_SETTINGS'] = 'my_project_settings.development' # Method 2: Command line argument (preferred for non-programmatic loading) # For programmatic loading, you'd typically use LazySettings or a custom loader # For this quickstart, we'll demonstrate direct access after 'setting' the module path implicitly. # In a real app, you would run like: python your_script.py --settings=my_project_settings.development # As a workaround for a runnable quickstart, we'll manually set the internal _SETTINGS_MODULE # This is NOT how you'd normally configure it in production for the 'settings' singleton # Normally, the --settings CLI arg or SIMPLE_SETTINGS env var would handle this. # Using LazySettings is the programmatic alternative. # For this demonstration, we'll mimic the effect of `settings.configure()` # if the env var or CLI was set. # In a real application, you'd run `python your_app.py --settings=my_project_settings.development` # and then `from simple_settings import settings` would automatically pick it up. # To make this runnable without CLI args or env vars, we use LazySettings. try: # Using LazySettings for a self-contained programmatic example app_settings = LazySettings('my_project_settings.development') print(f"FOO setting: {app_settings.FOO}") print(f"BAZ setting: {app_settings.BAZ}") # Demonstrate a missing required setting (this would raise an error) # with open(os.path.join(settings_dir, 'broken_settings.py'), 'w') as f: # f.write("BAZ = 456") # broken_app_settings = LazySettings('my_project_settings.broken_settings') # print(f"Broken FOO: {broken_app_settings.FOO}") except Exception as e: print(f"An error occurred: {e}") finally: # Clean up dummy settings file and directory os.remove(os.path.join(settings_dir, 'development.py')) # if os.path.exists(os.path.join(settings_dir, 'broken_settings.py')): # os.remove(os.path.join(settings_dir, 'broken_settings.py')) os.rmdir(settings_dir) sys.path.pop(0)