old_contents: from django.utils.translation import npgettext, pgettext_lazy
  from django_filters import (
      CharFilter, ChoiceFilter, OrderingFilter, RangeFilter)
  
  from ...core.filters import SortedFilterSet
  from ...shipping.models import COUNTRY_CODE_CHOICES, ShippingMethod
  
  SORT_BY_FIELDS = {
      'name': pgettext_lazy('Group list sorting option', 'name')}
  
  
  class ShippingMethodFilter(SortedFilterSet):
      name = CharFilter(
          label=pgettext_lazy(
              'Shipping method list filter label', 'Name'),
          lookup_expr="icontains")
      price = RangeFilter(
          label=pgettext_lazy(
              'Shipping method list filter label', 'Price range'),
          name='price_per_country__price')
      country = ChoiceFilter(
          label=pgettext_lazy('Shipping method filter label', 'Country'),
          name='price_per_country__country_code',
          choices=COUNTRY_CODE_CHOICES)
      sort_by = OrderingFilter(
          label=pgettext_lazy('Product list sorting filter label', 'Sort by'),
          fields=SORT_BY_FIELDS.keys(),
          field_labels=SORT_BY_FIELDS)
  
      class Meta:
          model = ShippingMethod
          fields = []
  
      def get_summary_message(self):
          counter = self.qs.count()
          return npgettext(
              'Number of matching records in the dashboard shipping methods list',
              'Found %(counter)d matching shipping method',
              'Found %(counter)d matching shipping methods',
              number=counter) % {'counter': counter}
  
new_contents: from django.utils.translation import npgettext, pgettext_lazy
  from django_filters import (
      CharFilter, ChoiceFilter, OrderingFilter, RangeFilter)
  
  from ...core.filters import SortedFilterSet
  from ...shipping.models import COUNTRY_CODE_CHOICES, ShippingMethod
  
  SORT_BY_FIELDS = {
      'name': pgettext_lazy('Group list sorting option', 'name')}
  
  
  class ShippingMethodFilter(SortedFilterSet):
      name = CharFilter(
          label=pgettext_lazy(
              'Shipping method list filter label', 'Name'),
          lookup_expr="icontains")
      price = RangeFilter(
          label=pgettext_lazy(
              'Shipping method list filter label', 'Price range'),
          name='price_per_country__price')
      country = ChoiceFilter(
          label=pgettext_lazy('Shipping method filter label', 'Country'),
          name='price_per_country__country_code',
          choices=COUNTRY_CODE_CHOICES)
      sort_by = OrderingFilter(
          label=pgettext_lazy('Product list sorting filter label', 'Sort by'),
          fields=SORT_BY_FIELDS.keys(),
          field_labels=SORT_BY_FIELDS)
  
      class Meta:
          model = ShippingMethod
          fields = []
  
      def get_summary_message(self):
          counter = self.qs.count()
          return npgettext(
              'Number of matching records in the dashboard '
              'shipping methods list',
              'Found %(counter)d matching shipping method',
              'Found %(counter)d matching shipping methods',
              number=counter) % {'counter': counter}
  
subject: Fix too long line