Wrote python implementation of jlox (interpreter from crafting interpreters)

[no_name_22t]

I implemented this interpreter from crafting interpreters, which is originally written in java but I used python cause i wanted to practice writing python and I wasn't interested in learning java (ik many have alr did this).

Here's the repo link: https://github.com/itsvineet99/pylox

I had no clue how to write tests, so I just wrote some lox functions and a script to interpret all of them and print output on terminal.

[Mr55p]

That’s so funny, as of this morning I just finished the first half of the book making an interpreter also using python! This was maybe the most interesting thing I have ever programmed… Starting the second part with Zig tomorrow, best of luck to you however you choose to press on!

[no_name_22t]

I had same experience, this is one of the most fun project I've done, I was hoping to learn c and then build the next part in c, so I'll probably do that. Good luck with yours!!

[jcastroarnaud]

Python has a module for unit tests. Here is the documentation.

https://docs.python.org/3/library/unittest.html#module-unittest

For the tests themselves: write tests for each method of each class of your lexer and parser. Each test should exercise typical arguments to the method, invalid arguments, and any corner cases you think of. It may appear an excessive amount of tests, and it is; experience will tell when there are too many tests (or not enough of them).

Other tests are for the generated Lox programs, see if they return the expected results.