cursed-for 0.2.1

Implementing C-style for loops in Python for fun.

cursed-for

Implementing C-style for loops in Python:

for (i = 0; i < 10; i += 3):
    print(i)

Installation

pip install cursed-for

Usage

Add the following # coding comment at the top of the file in which you wish to curse:

# coding: cursed_for

Then write the cursed for-loops as needed. Check this file for an example.

But why?

This was implemented because of a cursed idea I had one night, which I put on twitter:

And although this worked, I really didn't like the look of it. But using the methods I used, I was confined to Python's syntax, which really doesn't support the kind of things I'd have liked to do. But then I stumbled upon a couple packages which gave me exactly the tools I needed to commit this atrocity.

I wrote a blog on the approaches I went through to implement this.

The rough iterations that happened during the development are documented in the approach folder. It contains both the AST manipulation method, and the "truly cursed" method.

The "old way" usage

Note that this only really works in a REPL. To start it, run cursedfor.py in the terminal. It's a single file, you can get it by just downloading the one file if you want to.

>>> with _for(i := 0, i < 10, i += 2):
...     print(i)
0
2
4
6
8