Libraries

I've considered learning Python, but then I thought that I could probobly get everything I need from Python in a C++ library. What are some libaries for me needs...

Strings - Lowercasing strings, comparing strings, concatting strings, all stuff like that.

Config files - Reading configuration files and writing to them in an organized way (not the std file library...)

Also - Where can I get a tutorial on command line arguments?

anything that you find in iostream or the STL should give you everything you'll ever need to do with strings. As for organizing the input and output of your files, that's all up to you. I doubt there are any libraries that will make it easier than what you'll find in fstream. Command line arguments are what you make of them. You can have an entire file path as an argument, as long as you account for it.