I don't like mutability. Whenever it's possible I use immutable objects and JVM is pretty damn good optimized to handle a lot of object allocations. But there are rare cases when you just can't copy ...
A complete Python conversion of Microsoft's slmgr.vbs script for managing Windows licensing and activation. This tool provides command-line management of Windows Software Protection Platform (SPP) ...
Python is a language that seems easy to do, especially for prototyping, but make sure not to make these common mistakes when coding.