Congratulations! You have now made your own programming language. It's time to take it out for a spin.
Any programming language with respect for itself needs to have a standard library. This is a collection of useful functions provided along with the language core.
In this section we will create various useful functions, all implemented purely in DIY Lang. No Python this time!
For this part, you should consider the provided tests more like suggestions than something you have to follow. It is your language, after all, and you decide what should be in its library.
nosetests tests/test_7_using_the_language.py --stop
You have created a programming language, and used it to write serious code. If you'd like to wrap up here, that's perfectly fine, and you should be proud of what you have done.
If, however, you want more, then move on to part 8 for some optional final challenges.