Python resources

• Better than coroutines: cogenerators!
• A decorator to declare some function argument positional only
• How to refer to the current class or the current function
• How to created methods which are local to a class, i.e. they can only be called from other methods within that class.
• A fast function composer
• A decorator to let (some of) a method's arguments be auto-assigned as object attributes.
• A tokenising module to tokenise a character stream. It aims to reproduce the functionailty of GNU flex