有我没有导入的 ImportError

Question

请有人帮助我。 我使用 django 4.2.1 时没有从项目中的任何地方导入 ugettext_lazy。 我只是从那时起安装 django-messages 我无法继续我的项目。 此错误一直在一个地方显示 am 库存。 我检查了所有导入以查看 ugettext_lazy 的来源，但我无法追踪它。 我什至将 django 4 降级为 django 3 但我仍然在 django 3 中遇到一些导入错误。我再次将其升级到 Z2B9AFB89A6ACC15ADCA41 请帮帮我。 谢谢

这是我的views.py 进口

    # from http.client import HTTPResponse
# from django.contrib.auth import login
from django.shortcuts import redirect, render
 
from .forms import CustomUserCreationForm, PostForm, CommentForm, NovenaCommentForm
from . models import About_us, My_blog, Like, Comment, Slider, Prayers, Description, Novena, NovenaComment

from django.urls import reverse
from django.http import HttpResponseRedirect
from django.core.paginator import Paginator,  EmptyPage, PageNotAnInteger
from . like import new_likes, authmessage
from django.contrib import messages
from django.http import HttpResponse
from django.urls import reverse_lazy
from django.contrib.auth.models import User, auth
from django.contrib.auth import authenticate
# from django.contrib import messages
from django.views.generic import ListView, DetailView, DeleteView
from django.contrib.auth.decorators import login_required, user_passes_test, permission_required
from authentications.message import infor

这是管理员导入

from django.contrib import admin
from . models import My_blog, Comment,Slider,Prayers,Description,Novena,Like,About_us,NovenaComment,SubscribedUser

这是我的models.py

from email.mime import image
from time import timezone
from turtle import title
from django.db import models

from django.contrib.auth.models import User

这是我 install_app 中的 django_message 安装

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'blog',
    'crispy_forms',
    'authentications',
    'django_messages'
]

这是完整的错误

C:\Users\Christopher\Better_world_blog>python manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\threading.py", line 932, in _bootstrap_inner
    self.run()
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\commands\runserver.py", line 115, in inner_run
    autoreload.raise_last_exception()
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\autoreload.py", line 87, in raise_last_exception
    raise _exception[1]
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\__init__.py",
line 381, in execute
    autoreload.check_errors(django.setup)()
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\apps\registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\apps\config.py", line 123, in
create
    mod = import_module(mod_path)
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django_messages\apps.py", line 2, in
<module>
    from django.utils.translation import ugettext_lazy as _
ImportError: cannot import name 'ugettext_lazy' from 'django.utils.translation' (C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\translation\__init__.py)

Answer 1

这与您的项目无关，但 django 它自己因为ugettext_lazy已在 Django 4.0 中删除。 只需使用gettext_lazy代替：

可能的解决方案：

打开： opt/homebrew/lib/python3.9/site-packages/jsonfield/fields.py

将第 9 行从：

from django.utils.translation import ugettext_lazy as _

至：

from django.utils.translation import gettext_lazy as _

您将能够启动 Django

Answer 2

问题不在于您的代码，而在于您安装的django_messages package

File "C:\Users\Christopher\AppData\Local\Programs\Python\Python38\lib\site-packages\django_messages\apps.py", line 2

您可以通过覆盖 package 手动修复此错误，但每次再次安装 package 时错误都会恢复（在另一个环境中）

• 我的建议是为django_messages创建一个新问题或尝试修复错误并合并请求。
• 或使用 django 2.2 作为 package 的作者在 package 的README中提到的。
• 或使用另一个 package...