Python 3 was not verified. Using the platform evidence already gathered, guide me through the safest current installation from an official source. Prefer python.org or an approved operating-system package manager and cite the official page.

Explain the installer choice, supported version, architecture, PATH or launcher option, installation scope, administrator implications, expected disk use, verification, update path, and uninstall path. Do not download, execute, elevate, or change settings for me. Do not recommend an unofficial mirror, bundled stack, global third-party package, or disabled security control.

Pause while I complete the official installer privately. Then provide the smallest commands needed to verify Python, its executable location, and the pip instance associated with that interpreter.