theburningmonk

class MyClass {
  static final MyClass _singleton = new MyClass._internal();

  factory MyClass() {
    return _singleton;
  }

  MyClass._internal() {
    ... // initialization logic here
  }

mikeckennedy

from events import Events # Note you must pip install events


class Person:

    def __init__(self, name: str, age: int, city: str):
        self.__events = Events(('on_name_changed', 'on_age_changed', 'on_location_changed'))
        self.on_name_changed = self.__events.on_name_changed
        self.on_age_changed = self.__events.on_age_changed
        self.on_location_changed = self.__events.on_location_changed

pybites

import concurrent.futures
import os
import re
from timeit import timeit

import requests
from tqdm import tqdm

URLS = 'urls'

romannurik

Moved to
https://github.com/romannurik/android-swipetodismiss

jsbueno

from itertools import tee

def lazy_sort(v, key=lambda x: x):
    v = iter(v)
    try:
        pivot = next(v)
    except StopIteration:
        return
    v_pre, v_pos = tee(v)
    yield from lazy_sort((item for item in v_pre if key(item) < key(pivot)), key)

nicolaiarocci

import copy

from cerberus import Validator
from cerberus import errors

from collections import Mapping, Sequence


class ObjectValidator(Validator):
    def __init__(self, *args, **kwargs):