Auto-magic project/package root path detection - from a child module file for Python libraries/projects. It does this by detecting typical package/project root files/folders (e.g. .git, ...

Jumping through hoops to write the famous Quake 3 code in Python. The inverse square root of a number x is x-1/2. For example, put in 25, you'll get back 0.2: the square root of 25 is 5, the inverse ...