Practice · 2 of 2

Refuse to boot without secrets

CHALLENGE

Difficulty: advanced+25 XP

Implement load_config(env, required=('SECRET_KEY', 'DB_URL')): - returns a dict of every key in required that is present AND non-empty (stripped) - missing or empty required keys → raise ConfigError('missing required config: ' + ', '.join(sorted(missing))) - extra keys in env are IGNORED (never trusted into the config) - define class ConfigError(Exception)

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