tswr

import functools
from collections import OrderedDict

class Registrar:
    def __init__(self):
        self.registry = OrderedDict()

    def __call__(self, func=None, **kwargs):
        def register(kwargs, func):
            self.registry[func] = kwargs

tswr

#include <cassert>
#include <cmath>
#include <iostream>
#include <tuple>
#include <vector>
#include <unordered_map>

struct RGB {
    double R, G, B;
};

tswr

import math
import itertools
from concurrent.futures import ThreadPoolExecutor as PoolExecutor
#from concurrent.futures import ProcessPoolExecutor as PoolExecutor

def is_prime(n):
    if n % 2 == 0:
        return False

    sqrt_n = int(math.floor(math.sqrt(n)))

tswr

import sys

def coroutine():
    data = yield
    while True:
        if data:
            print('Processing', data)
            data = yield len(data)

c = coroutine()