我在让Django/Python识别dj_数据库_url时遇到问题

我在让Django/Python识别dj_数据库_url时遇到问题。我已经使用

pip install dj database url

在我的virtualven中安装了，甚至尝试了

dj_database_url

终端说，

pip install dj database url

安装得很好，我做了

pip freeze>requirements.txt

但是，当运行

python manage.py runserver

时，我得到以下回溯错误，该错误以“ModuleNotFoundError:No module name'dj_database_url'”结束：

这方面的任何帮助都会很好，因为我一直在努力解决这个问题。如果需要任何其他信息，请告诉我。谢谢

试试看

pip install dj-database-url==0.5.0

（提供您需要的确切版本）

或

试一试

（提供您需要的确切版本）

或

---

您好，您自己，我尝试了这两个选项，但在终端中仍然得到相同的“ModuleNotFoundError”。您好，我尝试了这两个选项，但在终端中仍然得到相同的“ModuleNotFoundError”

import os
import environ

import dj_database_url


env = environ.Env()
environ.Env.read_env()

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

SECRET_KEY = env('SECRET_KEY')

DEBUG = env('DEBUG')

ALLOWED_HOSTS = []

EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'


INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'basic_core',
    'crispy_forms',
    'cart',
    'staff',
    'django.contrib.sites',
    'allauth',
    'allauth.account',
    'allauth.socialaccount',
]

DEFAULT_FROM_EMAIL = env('DEFAULT_FROM_EMAIL')
NOTIFY_EMAIL = env('NOTIFY_EMAIL')

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 = 'FryedSauces.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, "templates")],
        '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 = 'FryedSauces.wsgi.application'


if 'DATABASE_URL' in env('SECRET_KEY'):
    DATABASES = {
        'default': dj_database_url.parse(env('DATABASE_URL'))
    }
else:
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
        }
    }

# DATABASES = {
#     'default': {
#         'ENGINE': 'django.db.backends.sqlite3',
#         'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
#     }
# }

# DATABASES = {
#     'default': dj_database_url.parse('postgres://qmvriwrxtzbmvt:84361c36b8499a51a1780a52a7011a8263fee9e1361af0e56e3cfc8d24926b2f@ec2-46-137-123-136.eu-west-1.compute.amazonaws.com:5432/dd4lb2poq1fgnc')
# }


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',
    },
]


AUTHENTICATION_BACKENDS = (
    'django.contrib.auth.backends.ModelBackend',
    'allauth.account.auth_backends.AuthenticationBackend',
)
ACCOUNT_AUTHENTICATION_METHOD = 'email'
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_USERNAME_REQUIRED = False
ACCOUNT_EMAIL_VERIFICATION = 'mandatory'
REDIRECT_URL = '/'
SITE_ID = 1
CRISPY_TEMPLATE_PACK = 'bootstrap4'


LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


STATIC_URL = '/static/'
STATICFILES_DIRS = [os.path.join(BASE_DIR, "static")]
STATIC_ROOT = os.path.join(BASE_DIR, "static_root")
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, "media")

PAYPAL_CLIENT_ID = env('PAYPAL_SANDBOX_CLIENT_ID')
PAYPAL_SECRET_KEY = env('PAYPAL_SANDBOX_SECRET_KEY')


# Extra security settings
if DEBUG is False:
    SESSION_COOKIE_SECURE = True
    SECURE_BROWSER_XSS_FILTER = True
    SECURE_CONTENT_TYPE_NOSNIFF = True
    SECURE_HSTS_INCLUDE_SUBDOMAINS = True
    SECURE_HSTS_SECONDS = 31536000
    SECURE_REDIRECT_EXEMPT = []
    SECURE_SSL_REDIRECT = True
    SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')

    ALLOWED_HOSTS = ['fryed-sauces-project.herokuapp.com', 'localhost']
    EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'

    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.postgresql_psycopg2',
            'NAME': '',
            'USER': '',
            'PASSWORD': '',
            'HOST': '',
            
        }
    }

    PAYPAL_CLIENT_ID = env('PAYPAL_LIVE_CLIENT_ID')
    PAYPAL_SECRET_KEY = env('PAYPAL_LIVE_SECRET_KEY')

pip install dj-database-url==0.5.0

.env/bin/pip install dj-database-url==0.5.0