I follow Python since 1.6, and occasionally use it for portable scripting when on UNIX platforms (PowerShell on Win), and many aren't really aware that Python is Ada/C++ level of complexity, even if on the first contact seems like the new BASIC.

Besides the nuances of how everything is executed, there are occasionally breaking changes between minor language revisions.

You cannot just pick up a random Python script and be sure it still behaves the same way across all minor revisions.