config parsing

Config parsing is the automated extraction of structured parameters from external files like YAML, JSON, or INI to control application behavior without recompiling code.

Modern systems rely on config parsing to separate logic from environment-specific data. Whether you are using Python's configparser for legacy INI files or Pydantic for type-safe JSON validation, the goal is the same: ingest raw strings and map them to actionable objects. High-performing operators use this to manage everything from database credentials to feature flags across dev, staging, and production. By centralizing these variables in external files (like settings.yaml or .env), you ensure that a single container image remains portable and secure across your entire infrastructure.

https://docs.python.org/3/library/configparser.html