eugena

eugena

class FenwickTreeMax(object):
    """
    Fenwick Tree for Max
    """
    def __init__(self, nums):
        """
        Initialize tree
        """
        self.n = len(nums)
        self.left = [0] * (self.n + 1)

eugena

class Trie(object):
    """
    Trie with End marker
    """
    END = '_end_'
    current = dict()
    
    def add(self, word):
        """
        Adds a word to Trie

eugena

class SomeViewSet(mixins.UpdateModelMixin, viewsets.GenericViewSet):
  def update(self, request, *args, **kwargs):
    if request.data:
      request._full_data = request._full_data.copy()
      request._full_data['some key'] = 'some new value'
    return super(SomeViewSet, self).update(request, *args, **kwargs)

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from django.core.mail import EmailMessage

msg = EmailMessage(to=['mailbox@example.com', ])
msg.template_name = 'template'

msg.global_merge_vars = {
  'var1': 'value1',
  'var2': 'value2',
}

eugena

from push_notifications.models import GCMDevice

device = GCMDevice.objects.get(registration_id='...')
device.send_message('This is a message', extra={"title": "This is a title"})

eugena

import hashlib

from django.conf import settings


class EmailVerificationTokenGenerator(object):
    """
    Strategy object used to generate and check tokens for the email
    verification mechanism.
    """

eugena

from rest_framework.authentication import SessionAuthentication


class CsrfExemptSessionAuthentication(SessionAuthentication):
    """
    SessionAuthentication without csrf token check
    """
    def enforce_csrf(self, request):
        """
        Not performing csrf token check

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from rest_framework import serializers


class HybridPrimaryKeyRelatedAndSerializerMethodField(serializers.PrimaryKeyRelatedField):
    """
    PrimaryKeyRelatedField & SerializerMethodField
    """
    def __init__(self, method_name=None, **kwargs):
        self.method_name = method_name
        super(HybridPrimaryKeyRelatedAndSerializerMethodField, self).__init__(**kwargs)

eugena

from django.conf import settings
import gocardless_pro


class GoCardless(object):
    """
    GoCardless wrapper
    """
    def __init__(self):
        self.client = gocardless_pro.Client(