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from collections.abc import MutableSequence
from itertools import islice
from functools import reduce


class List(MutableSequence):
    def __init__(self, seq):
        self._d = list(seq)

    def __delitem__(self, pos):

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"""
Auxilio a pergunta feita no facebook.

https://www.facebook.com/groups/python.brasil/permalink/1289629901141877/
"""

class Stack(object):
    def __init__(self):
        """Inicializa a pilha vazia."""
        self.p = []  # Aqui P vai ser a lista interna

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"""
Minhas considerações a pergunta no facebook:
https://www.facebook.com/groups/python.brasil/permalink/1296198200485047/
"""

def is_digit(func):
    def inner(string):
        if string.isdigit():
            return func(string)
        return False

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"""
Gist para rapidinha #5: https://youtu.be/95_tm5jh5Gc
"""

from io import StringIO
from unittest import main, TestCase
from unittest.mock import patch

def stdout(string):
    print(string)

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# copied from: 
# https://stackoverflow.com/questions/31875/is-there-a-simple-elegant-way-to-define-singletons

class Singleton:
    """
    A non-thread-safe helper class to ease implementing singletons.
    This should be used as a decorator -- not a metaclass -- to the
    class that should be a singleton.

    The decorated class can define one `__init__` function that

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"""Exemplo agendas.
Não mencionar PEP8, feito em 5m
"""
from re import sub
from bs4 import BeautifulSoup as bs
from selenium import webdriver
from requests import get

browser = webdriver.Firefox()

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"""
Exemplo para ajudar a responder o problema de aninhamento em https://gist.github.com/AndersonFirmino/b0300923094a5a8450018c5bd32c9de8
"""
from itertools import filterfalse
from functools import partial
from random import choice, random

def pipe(*funcs):
    def inner(data, funcs=funcs):
        result = data

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from bottle import Bottle

app = Bottle()

@app.get('/api/v1/test_route1')
def get_route1():
    return '42'

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"""
Minha contribuição ao buzzfizz funcional.

https://www.facebook.com/groups/python.brasil/permalink/1411831415588391/
"""
from functools import partial
from operator import mod, eq


def pipeline(*funcs):