That's because "import wheel" in Python means something different than the similarly written statement in Java.
In Java an import written like that imports only one specific class. In Python it means import everything defined in the wheel "package". You can do the same in Java: import wheel.*
That syntax however is frowned upon, as it makes it less explicit about what you are actually using, and more assumptions must be made to understand the code. Did that class come from "wheel" or did it come from "stoneage", "car", "steam" or "yarn" ?
Anyway, contact me again when a Python snippet can actually survive being send by email.