Removed reading of legacy admin popup GET parameter.

        """

        # If self.actions is explicitly set to None that means that we don't

        # want *any* actions enabled on this page.

        from django.contrib.admin.views.main import _is_changelist_popup

        if self.actions is None or _is_changelist_popup(request):

        if self.actions is None or IS_POPUP_VAR in request.GET:

            return OrderedDict()

        actions = []

from collections import OrderedDict

import sys

import warnings

from django.core.exceptions import SuspiciousOperation, ImproperlyConfigured

from django.core.paginator import InvalidPage

from django.db import models

from django.db.models.fields import FieldDoesNotExist

from django.utils import six

from django.utils.deprecation import RemovedInDjango18Warning

from django.utils.encoding import force_text

from django.utils.translation import ugettext, ugettext_lazy

from django.utils.http import urlencode

EMPTY_CHANGELIST_VALUE = ugettext_lazy('(None)')

def _is_changelist_popup(request):

    """

    Returns True if the popup GET parameter is set.

    This function is introduced to facilitate deprecating the legacy

    value for IS_POPUP_VAR and should be removed at the end of the

    deprecation cycle.

    """

    if IS_POPUP_VAR in request.GET:

        return True

    IS_LEGACY_POPUP_VAR = 'pop'

    if IS_LEGACY_POPUP_VAR in request.GET:

        warnings.warn(

            "The `%s` GET parameter has been renamed to `%s`." %

            (IS_LEGACY_POPUP_VAR, IS_POPUP_VAR),

            RemovedInDjango18Warning, 2)

        return True

    return False

class ChangeList(object):

    def __init__(self, request, model, list_display, list_display_links,

            list_filter, date_hierarchy, search_fields, list_select_related,

        except ValueError:

            self.page_num = 0

        self.show_all = ALL_VAR in request.GET

        self.is_popup = _is_changelist_popup(request)

        self.is_popup = IS_POPUP_VAR in request.GET

        self.to_field = request.GET.get(TO_FIELD_VAR)

        self.params = dict(request.GET.items())

        if PAGE_VAR in self.params: