Encoding error, how to fix?

Question

Django

When exporting to cvs I get the following result,

where is the error?
admin.py file code

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.http import HttpResponse
import csv
import datetime
from django.contrib import admin
from .models import Order, OrderItem

def ExportToCSV(modeladmin, request, queryset):
    opts = modeladmin.model._meta
    response = HttpResponse(content_type='text/csv')
    response['Content-Disposition'] = 'attachment; \
        filename=Orders-{}.csv'.format(datetime.datetime.now().strftime("%d/%m/%Y"))
    writer = csv.writer(response)

    fields = [field for field in opts.get_fields() if not field.many_to_many and not field.one_to_many]
    # Первая строка- оглавления
    writer.writerow([field.verbose_name.encode("cp1251") for field in fields])
    # Заполняем информацией
    for obj in queryset:
        data_row = []
        for field in fields:
            value = getattr(obj, field.name)
            if isinstance(value, datetime.datetime):
                value = value.strftime('%d/%m/%Y')
            data_row.append(value)
        writer.writerow(str(data_row))
    return response
ExportToCSV.short_description = 'Export CSV'

class OrderItemInline(admin.TabularInline):
    model = OrderItem
    raw_id_field = ['product']

class OrderAdmin(admin.ModelAdmin):
    list_display = ['id', 'first_name', 'last_name', 'email', 'addres',
                    'postal_code', 'city', 'paid', 'created', 'update']
    list_filter = ['paid', 'created', 'update']
    inlines = [OrderItemInline]
    actions = [ExportToCSV]

admin.site.register(Order, OrderAdmin)

Answer 1

the title is written with the encoding:
and lines - without:
Here in it and an error.