permute

A python package for compiling large branching python functions into iterative C code.

Coding Guidelines

Use python 3.10+

Use type hints in parameters and returns.

def typed_function(a: int, b: int) -> int:
    return a + b

Use type hints in assignments to indicate initialization

def foo():
    x: int = 0
    x = x + 1

When using type hints, do not use any of the now-deprecated UpperCase type classes from the typing package

# do this ✔
x: list[float] = [0.1, 0.2, 0.3]
y: dict[str, int] = {
    'foo': 0,
    'bar': 1,
}

# not this ✖
from typing import List, Dict
x: List[int] = []
y: Dict[str, int] = {}

Unsupported Language Features

• Classes & Objects, use namedtuple instead
• Iterable unpacking a, b = (1, 2)
• Keyword arguments func(a=2)
• Default arguments def func(a: float = 2)
• Variable length arguments *args and **kwargs

WIP Language Features

• Dictionaries