arkanister

"""
Cep query by brazilian correios web services.

requirements:
    - zeep==3.4.0
"""

from zeep import Client, exceptions

arkanister

import random


def _cpf_dv(digits):
    """
    Returns the calculated verification digit.
    """
    mod = sum(a * b for a, b in zip(digits, range(len(digits) + 1, 1, -1))) % 11
    return 0 if mod < 2 else 11 - mod

arkanister

import itertools
import random


def _cnpj_dv(digits):
    """
    Returns the calculated verification digit.
    """
    mul = list(itertools.chain(*[range(len(digits) - 7, 1, -1), range(9, 1, -1)]))
    return ((sum([a * b for a, b in zip(digits, mul)]) * 10) % 11) % 10

arkanister

import datetime

from django.conf import settings
from django.utils import timezone
from django.utils.translation import ugettext_lazy as _
from rest_framework import serializers, compat


class TimestampField(serializers.Field):
    default_error_messages = {

arkanister

class Unset:
    """
    This class represent an unset instance.
    """


unset = Unset()


def first_or_default(sequence, condition=unset, default=None):