2017-09-09 12:49:09 +00:00
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from datetime import datetime
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from celery.exceptions import MaxRetriesExceededError
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2017-08-06 16:42:27 +00:00
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from celery.utils.log import get_task_logger
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from django.conf import settings
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2017-09-09 12:49:09 +00:00
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from django.core.mail import EmailMessage
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from dynamicweb.celery import app
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from hosting.models import HostingOrder, HostingBill
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from membership.models import StripeCustomer
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2017-08-06 16:42:27 +00:00
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from opennebula_api.models import OpenNebulaManager
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from opennebula_api.serializers import VirtualMachineSerializer
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from utils.forms import UserBillingAddressForm
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from utils.models import BillingAddress
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logger = get_task_logger(__name__)
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def retry_task(task, exception=None):
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"""Retries the specified task using a "backing off countdown",
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meaning that the interval between retries grows exponentially
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with every retry.
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Arguments:
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task:
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The task to retry.
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exception:
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Optionally, the exception that caused the retry.
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"""
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def backoff(attempts):
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return 2 ** attempts
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kwargs = {
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'countdown': backoff(task.request.retries),
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}
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if exception:
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kwargs['exc'] = exception
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2017-08-06 19:54:12 +00:00
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raise task.retry(**kwargs)
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2017-08-06 16:42:27 +00:00
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2017-08-06 19:54:12 +00:00
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@app.task(bind=True, max_retries=settings.CELERY_MAX_RETRIES)
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2017-08-23 18:12:50 +00:00
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def create_vm_task(self, vm_template_id, user, specs, template,
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stripe_customer_id, billing_address_data,
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2017-08-06 16:42:27 +00:00
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billing_address_id,
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2017-08-24 06:19:41 +00:00
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charge, cc_details):
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2017-08-06 16:52:23 +00:00
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vm_id = None
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2017-08-06 16:42:27 +00:00
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try:
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final_price = specs.get('price')
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2017-08-23 18:12:50 +00:00
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billing_address = BillingAddress.objects.filter(
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id=billing_address_id).first()
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2017-08-06 16:42:27 +00:00
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customer = StripeCustomer.objects.filter(id=stripe_customer_id).first()
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2017-09-10 09:56:29 +00:00
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2017-09-09 15:16:43 +00:00
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if 'pass' in user:
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2017-09-10 09:56:29 +00:00
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on_user = user.get('email')
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on_pass = user.get('pass')
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logger.debug("Using user {user} to create VM".format(user=on_user))
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2017-09-10 09:22:06 +00:00
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vm_name = None
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2017-09-09 15:16:43 +00:00
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else:
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2017-09-10 09:56:29 +00:00
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on_user = settings.OPENNEBULA_USERNAME
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on_pass = settings.OPENNEBULA_PASSWORD
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2017-09-09 12:49:09 +00:00
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logger.debug("Using OpenNebula admin user to create VM")
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2017-09-10 09:22:06 +00:00
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vm_name = "{email}-{template_name}-{date}".format(
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email=user.get('email'),
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template_name=template.get('name'),
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date=int(datetime.now().strftime("%s")))
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2017-08-06 16:42:27 +00:00
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2017-09-10 09:56:29 +00:00
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# Create OpenNebulaManager
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manager = OpenNebulaManager(email=on_user, password=on_pass)
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2017-08-06 16:42:27 +00:00
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vm_id = manager.create_vm(
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template_id=vm_template_id,
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specs=specs,
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2017-08-19 12:32:55 +00:00
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ssh_key=settings.ONEADMIN_USER_SSH_PUBLIC_KEY,
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2017-09-10 09:22:06 +00:00
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vm_name=vm_name
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2017-08-06 16:42:27 +00:00
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)
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2017-08-06 16:52:23 +00:00
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if vm_id is None:
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raise Exception("Could not create VM")
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2017-08-06 16:42:27 +00:00
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# Create a Hosting Order
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order = HostingOrder.create(
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price=final_price,
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vm_id=vm_id,
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customer=customer,
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billing_address=billing_address
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)
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# Create a Hosting Bill
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HostingBill.create(
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customer=customer, billing_address=billing_address)
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# Create Billing Address for User if he does not have one
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if not customer.user.billing_addresses.count():
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billing_address_data.update({
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'user': customer.user.id
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})
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billing_address_user_form = UserBillingAddressForm(
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billing_address_data)
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billing_address_user_form.is_valid()
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billing_address_user_form.save()
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2017-08-20 20:24:55 +00:00
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# Associate an order with a stripe subscription
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2017-08-06 16:42:27 +00:00
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charge_object = DictDotLookup(charge)
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2017-08-24 06:19:41 +00:00
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order.set_subscription_id(charge_object, cc_details)
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2017-08-06 16:42:27 +00:00
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# If the Stripe payment succeeds, set order status approved
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order.set_approved()
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vm = VirtualMachineSerializer(manager.get_vm(vm_id)).data
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context = {
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'name': user.get('name'),
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'email': user.get('email'),
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'cores': specs.get('cpu'),
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'memory': specs.get('memory'),
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'storage': specs.get('disk_size'),
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'price': specs.get('price'),
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'template': template.get('name'),
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'vm.name': vm['name'],
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'vm.id': vm['vm_id'],
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'order.id': order.id
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}
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email_data = {
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'subject': settings.DCL_TEXT + " Order from %s" % context['email'],
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'from_email': settings.DCL_SUPPORT_FROM_ADDRESS,
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'to': ['info@ungleich.ch'],
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2017-08-23 18:12:50 +00:00
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'body': "\n".join(
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["%s=%s" % (k, v) for (k, v) in context.items()]),
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2017-08-06 16:42:27 +00:00
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'reply_to': [context['email']],
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}
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email = EmailMessage(**email_data)
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email.send()
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except Exception as e:
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logger.error(str(e))
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2017-08-06 19:54:12 +00:00
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try:
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retry_task(self)
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except MaxRetriesExceededError:
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2017-08-23 18:12:50 +00:00
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msg_text = 'Finished {} retries for create_vm_task'.format(
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self.request.retries)
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2017-08-06 19:54:12 +00:00
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logger.error(msg_text)
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# Try sending email and stop
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email_data = {
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2017-08-23 18:12:50 +00:00
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'subject': '{} CELERY TASK ERROR: {}'.format(settings.DCL_TEXT,
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msg_text),
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2017-08-06 19:54:12 +00:00
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'from_email': settings.DCL_SUPPORT_FROM_ADDRESS,
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'to': ['info@ungleich.ch'],
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2017-08-06 20:19:27 +00:00
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'body': ',\n'.join(str(i) for i in self.request.args)
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2017-08-06 19:54:12 +00:00
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}
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email = EmailMessage(**email_data)
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email.send()
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return
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2017-08-06 16:42:27 +00:00
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2017-08-06 16:52:23 +00:00
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return vm_id
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2017-08-06 16:42:27 +00:00
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class DictDotLookup(object):
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"""
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Creates objects that behave much like a dictionaries, but allow nested
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key access using object '.' (dot) lookups.
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"""
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def __init__(self, d):
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for k in d:
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if isinstance(d[k], dict):
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self.__dict__[k] = DictDotLookup(d[k])
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elif isinstance(d[k], (list, tuple)):
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l = []
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for v in d[k]:
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if isinstance(v, dict):
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l.append(DictDotLookup(v))
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else:
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l.append(v)
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self.__dict__[k] = l
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else:
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self.__dict__[k] = d[k]
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def __getitem__(self, name):
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if name in self.__dict__:
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return self.__dict__[name]
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def __iter__(self):
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return iter(self.__dict__.keys())
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