pip install django-environ

# 項(xiàng)目目錄中
touch .env

# 增加環(huán)境變量
DEBUG=True
SECRET_KEY=your-secret-key
DATABASE_URL=psql://urser:un-githubbedpassword@127.0.0.1:8458/database
SQLITE_URL=sqlite:///my-local-sqlite.db
CACHE_URL=memcache://127.0.0.1:11211,127.0.0.1:11212,127.0.0.1:11213
REDIS_URL=rediscache://127.0.0.1:6379/1?client_class=django_redis.client.DefaultClient&password=ungithubbed-secret

import environ

# initialize env
env = environ.Env(
 # set casting, default value
 DEBUG=(bool, False)
)
# reading .env file
environ.Env.read_env()

# False if not in os.environ
DEBUG = env('DEBUG')

# Raises django's ImproperlyConfigured exception if SECRET_KEY not in os.environ
SECRET_KEY = env('SECRET_KEY')

# Parse database connection url strings like psql://user:pass@127.0.0.1:8458/db
DATABASES = {
 # read os.environ['DATABASE_URL'] and raises ImproperlyConfigured exception if not found
 'default': env.db(),
 # read os.environ['SQLITE_URL']
 'extra': env.db('SQLITE_URL', default='sqlite:////tmp/my-tmp-sqlite.db')
}

CACHES = {
 # read os.environ['CACHE_URL'] and raises ImproperlyConfigured exception if not found
 'default': env.cache(),
 # read os.environ['REDIS_URL']
 'redis': env.cache('REDIS_URL')
}

PROJECT_ENV=local python manage.py runserver

import os
import environ
import logging.config

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

env = environ.Env(
 # set casting, default value
 DEBUG=(bool, False)
)

"""
通過(guò)指定環(huán)境遍歷加載不同env文件
PROJECT_ENV=production python manage.py crontab add
默認(rèn)場(chǎng)景下可不指定，則加載local文件
"""
env_name = env.str('PROJECT_ENV', 'local')
# reading .env file
env.read_env('envs/.env.%s' % env_name)

'PROJECT_ENV=' + env_name 參數(shù)指定

CRONJOBS = [
 ("*/5 * * * *", "analysis.cron.test_cron", ">>" + LOG_DIR + "log/fba_claim_shipment.log"),
]

CRONTAB_COMMAND_PREFIX = 'PROJECT_ENV=' + env_name

PROJECT_ENV=local python manage.py crontab add