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from django.template import TemplateSyntaxError
from django.template.base import Variable, VariableDoesNotExist

old_resolve = Variable._resolve_lookup
def x(self, context):
    try:
        return old_resolve(self, context)
    except VariableDoesNotExist as e:
        part = e.params[0]
        if part not in ("SETTINGS_MODULE",):

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class MyQuerySet(QuerySet):
    def is_trial(self):
        return self.filter(is_trial=True)
        
    def isnt_trial(self):
        return self.filter(is_trial=False)

class MyModel(Model):
    trial = BooleanField(default=False)
    

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from typing import Tuple, Dict, List

class M(object):
    def __init__(self, x: int):
        self.id = x


Models = List[M]

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class MutationObserver(wrapt.ObjectProxy):

    def __init__(self, *args, **kwargs):
        super(MutationObserver, self).__init__(*args, **kwargs)
        self.__dict__['_self_changed'] = []
        self.__dict__['_self_used'] = []

    def __setattr__(self, key, value):

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# Generated by Django 2.1.dev20180228190652 on 2018-03-01 11:08

from django.db import migrations, models
import django.db.models.deletion


class Migration(migrations.Migration):

    initial = True

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class Goaway(View):
    def dispatch(self, request, *args, **kwargs):
        try:
            resp = super(Goaway, self).dispatch(request, *args, **kwargs)
        except Http404 as e:
            return HttpResponseRedirect("/")

    def get_object(self, *args, **kwargs):
        obj = super(Goaway, self).get_object(*args, **kwargs)
        if obj.account_id != self.request.user.account_id:

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q = self.request.GET.get('q')
items = ('frq_id', 'line_cls', 'technology_id', 'type_id', 'line_capacity_id', 'el_intf_type_a', 'location_a_id', 'location_z_id', 'comments', 'opened_at', 'opened_by', 'finalised', 'attach_id', 'location_a_id_old', 'offer_deadline', 'location_z_id_old', 'el_intf_type_z', 'cancelled', 'qinq', 'flow_type_id')
itemdicts = ({'{}__contains'.format(item): x} for item in items)
itemqs = (Q(**itemd) for itemd in itemdicts)
itemq = reduce(operator.or_, itemqs)

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class BaseComponent(object): 
    def get_name(self):
        try:
            return force_text(name)
        except AttributeError:
            return self.__class__.__name__
        
    def get_dependencies(self):
        try:
            return list(self.dependencies)

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>>> from django.utils import timezone
>>> import pytz

>>> now = timezone.now()
>>> x = pytz.timezone('Europe/London')
>>> now2 = now.replace(tzinfo=x)
>>> now3 = now2.astimezone(pytz.utc)
>>> now4 = now3.astimezone(x)
(datetime.datetime(2017, 5, 9, 12, 58, 13, 596984, tzinfo=<UTC>),
 datetime.datetime(2017, 5, 9, 12, 58, 13, 596984, tzinfo=<DstTzInfo 'Europe/London' LMT-1 day, 23:59:00 STD>),

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from django.forms.models import ModelFormOptions
def lol(self, k, v):
    if k == "exclude" and v:
        print(v)
    return setattr(self, k, v)
ModelFormOptions.__setattr__ = lol.__get__(ModelFormOptions)