pycountry属性の国を設定するカスタムdjango管理コマンドAttributeError

Question

pycountryパッケージからadminの国を設定するカスタムコマンドを作成しようとしています。しかし、私はそれを正しく参照していないと言っているAttributeErrorを混乱させています。誰かが私のミスを特定するのを助けることができますか？

管理コマンドのためのプロジェクトの設定は次のとおりです。

market/ 
    manage.py 
    address/ 
     __init__.py 
     models.py 
     management/ 
      __init__.py 
      commands/ 
       __init__.py 
       market_populate_countries.py 
     views.py 

管理コマンドコード：

from __future__ import absolute_import 
import sys 
from optparse import make_option 
from default.core.loading import get_model 
from django.core.management.base import BaseCommand, CommandError 

class Command(BaseCommand): 
    help = "Populates the list of countries with data from pycountry." 
    option_list = BaseCommand.option_list + (
     make_option(
      '--no-shipping', 
      action='store_false', 
      dest='is_shipping', 
      default=True, 
      help="Don't mark countries for shipping"), 
     make_option(
      '--initial-only', 
      action='store_true', 
      dest='is_initial_only', 
      default=False, 
      help="Exit quietly without doing anything if countries were already populated."), 
    ) 

    def handle(self, *args, **options): 
     try: 
      import pycountry 
     except ImportError: 
      raise CommandError(
       "You are missing the pycountry library. Install it with " 
       "'pip install pycountry'") 

     if Country.objects.exists(): 
      if options.get('is_initial_only', False): 
       # exit quietly, as the initial load already seems to have happened. 
       self.stdout.write("Countries already populated; nothing to be done.") 
       sys.exit(0) 
      else: 
       raise CommandError(
        "You already have countries in your database. This command " 
        "currently does not support updating existing countries.") 

     countries = [ 
      Country(
       iso_3166_1_a2=country.alpha2, 
       iso_3166_1_a3=country.alpha3, 
       iso_3166_1_numeric=country.numeric, 
       printable_name=country.name, 
       name=getattr(country, 'official_name', ''), 
       is_shipping_country=options['is_shipping']) 
      for country in pycountry.countries] 

     Country.objects.bulk_create(countries) 
     self.stdout.write("Successfully added %s countries." % len(countries)) 

トレースバック：

C:\Users\Alikhan\amazonclone\market>manage.py market_populate_countries 
Traceback (most recent call last): 
    File "C:\Users\Alikhan\amazonclone\market\manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 
354, in execute_from_command_line 
    utility.execute() 
    File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 
346, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "C:\Python27\lib\site-packages\django\core\management\base.py", line 394, 
in run_from_argv 
    self.execute(*args, **cmd_options) 
    File "C:\Python27\lib\site-packages\django\core\management\base.py", line 445, 
in execute 
    output = self.handle(*args, **options) 
    File "C:\Users\Alikhan\amazonclone\market\address\management\commands\market_ 
populate_countries.py", line 56, in handle 
    for country in pycountry.countries] 
    File "C:\Python27\lib\site-packages\pycountry\db.py", line 22, in __getattr__ 
    raise AttributeError 
AttributeError 

これは無関係ですが、以下の私がカスタマイズされてきた方法です。混乱を避けるためにget_modelのソース関数。

from __future__ import absolute_import 
import sys 
import traceback 
from importlib import import_module 

from django.apps import apps 
from django.apps.config import MODELS_MODULE_NAME 
from django.conf import settings 
from django.core.exceptions import AppRegistryNotReady 

from .exceptions import (
    AppNotFoundError, ClassNotFoundError, ModuleNotFoundError) 

def get_model(app_label, model_name): 
    try: 
     return apps.get_model(app_label, model_name) 
    except AppRegistryNotReady: 
     if apps.apps_ready and not apps.models_ready: 
      app_config = apps.get_app_config(app_label) 
      import_module('%s.%s' % (app_config.name, MODELS_MODULE_NAME)) 
      return apps.get_registered_model(app_label, model_name) 
     else: 
      raise 

Answer 1

pycountry数がalpha_2のために分離し、3

country.alpha2とcountry.alpha3は上記を変更した後、それぞれ

---

country.alpha_2とcountry.alpha_3する必要があります持っているように見えます、あなたのコードは

になるべき

countries = [ 
     Country(
      iso_3166_1_a2=country.alpha_2, 
      iso_3166_1_a3=country.alpha_3, 
      iso_3166_1_numeric=country.numeric, 
      printable_name=country.name, 
      name=getattr(country, 'official_name', ''), 
      is_shipping_country=options['is_shipping']) 
     for country in pycountry.countries]