当我拆分settings.py文件时，无法在django中启动新应用程序

Question

我像这样拆分了我的settings.py：

# __init__.py
from .base import *  # noqa
try:
from .local_settings import *  # noqa
except ImportError:
message = 'ERROR: Unable to import local_settings. Make sure it exists.'
raise ImportError(message)

# base.py
"""
Django settings for app project.
Generated by 'django-admin startproject' using Django 3.0.4.
For more information on this file, see
https://docs.djangoproject.com/en/3.0/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.0/ref/settings/
"""
import os
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
# Add the apps folder to python path
os.sys.path.append(os.path.join(BASE_DIR, 'apps'))

# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'app.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'app.wsgi.application'

# Password validation
# https://docs.djangoproject.com/en/3.0/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]

和：

# local_settings.py
import os
from .base import BASE_DIR
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '670b9a538dfe8545f4eff723345da43211084a05f520a2d638'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []

# Database
# https://docs.djangoproject.com/en/3.0/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'run/db.sqlite3'),
}
}

# Internationalization
# https://docs.djangoproject.com/en/3.0/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.0/howto/static-files/
STATIC_URL = '/static/'

除了python manage.py startapp myapp [or any other app name] ./apps/myapp之外，每个命令都能正常工作。每次我运行它命令时，我都会收到以下错误：

CommandError: 'myapp' conflicts with the name of an existing Python module and cannot be used as an app name. Please try another name.

我在__init__.py文件中发现它与我的代码有关。我的意思是，如果我评论所有的代码，那个错误就会消失。为什么会发生这种事？我该如何解决？

带目录

没有目录

Answer 1

正如@juggernaut所说。当您使用字符*时会发生错误，该字符会导入所有内容，从而覆盖一些内部内容。

当您运行命令python manage.py startapp myapp xxxx时，myapp部分与现有模块冲突，从而导致该错误。

请尝试手动导入，而不是使用from .base import * # noqa。这样，您只导入所需的模块，不会导致任何错误。