https://nalar.dev/tags/data-modeling/ Recent content in Data Modeling on Nalar Hugo en-us Fri, 04 Sep 2026 00:00:00 +0700 https://nalar.dev/model-combinable-options-in-python-with-enum-flag-and-intflag/ Fri, 04 Sep 2026 00:00:00 +0700 https://nalar.dev/model-combinable-options-in-python-with-enum-flag-and-intflag/ <p>Some values represent one choice from a fixed set. A log level might be <code>INFO</code>, <code>WARNING</code>, or <code>ERROR</code>. Python&rsquo;s <code>Enum</code> is a natural fit because one value should identify one member.</p> <p>Other values represent a <strong>combination of independent options</strong>. A file operation may allow reading and writing. A protocol field may enable compression and encryption. A component may expose several capabilities at the same time.</p> <p>Representing those combinations as ordinary booleans works at first:</p>