python - 姜戈 | 在 ModelForm 上出现循环导入错误

Question

我在 Django 中将 Form 和 FormModel 用于我的一个应用程序。我创建了一个模型如下models.py

from django.db import models


class ImageProcessor(models.Model):
    id_image = models.ImageField(upload_to="image_dir")

我正在使用如下表格（forms.py）

from django import forms
from .models import ImageProcessor


class ImageProcessorForm(forms.ModelForm):
    class Meta:
        model = ImageProcessor

在终端窗口中，我收到以下消息，我很确定这是因为

from .models import ImageProcessor

这个进口。

错误信息：

django.core.exceptions.ImproperlyConfigured：包含的 URLconf 'img_site.urls' 似乎没有任何模式。如果您在文件中看到有效模式，则问题可能是由循环导入引起的。

更新 1：（urls.py）

from django.contrib import admin
from django.urls import path, include

urlpatterns = [
    path('admin/', admin.site.urls),
    path('home/', include('np_imager_processor.urls'))
]

更新 2：

Traceback (most recent call last):
  File "C:\Users\SomePath\Programs\Python\Python36\lib\threading.py", line 916, in _bootstrap_inner
    self.run()
  File "C:\Users\SomePath\Programs\Python\Python36\lib\threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "F:\SomeProject\venv\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
    fn(*args, **kwargs)
  File "F:\SomeProject\venv\lib\site-packages\django\core\management\commands\runserver.py", line 118, in inner_run
    self.check(display_num_errors=True)
  File "F:\SomeProject\venv\lib\site-packages\django\core\management\base.py", line 396, in check
    databases=databases,
  File "F:\SomeProject\venv\lib\site-packages\django\core\checks\registry.py", line 70, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "F:\SomeProject\venv\lib\site-packages\django\core\checks\urls.py", line 40, in check_url_namespaces_unique
    all_namespaces = _load_all_namespaces(resolver)
  File "F:\SomeProject\venv\lib\site-packages\django\core\checks\urls.py", line 57, in _load_all_namespaces
    url_patterns = getattr(resolver, 'url_patterns', [])
  File "F:\SomeProject\venv\lib\site-packages\django\utils\functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "F:\SomeProject\venv\lib\site-packages\django\urls\resolvers.py", line 598, in url_patterns
    raise ImproperlyConfigured(msg.format(name=self.urlconf_name)) from e
django.core.exceptions.ImproperlyConfigured: The included URLconf 'img_site.urls' does not appear to have any patterns in it. If you see valid patterns in the file then the issue is probably caused by a circular i
mport.

标签： pythondjangodjango-modelsdjango-forms