10 - 文件详解 - settings.py + 测试、生产、正式环境

项目/config/init.py

项目/config/__init__.py

项目/config/dev.py 本地开发环境

# -*- coding: utf-8 -*-
# 本地开发环境
RUN_MODE = "DEVELOP"
# APP本地静态资源目录
STATIC_URL = "/static/"
# APP静态资源目录url
# REMOTE_STATIC_URL = "%sremote/" % STATIC_URL
DEBUG = True
# 本地开发数据库设置
DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.mysql",
        "NAME": "dbname",  # noqa
        "USER": "root",
        "PASSWORD": "root",
        "HOST": "127.0.0.1",
        "PORT": "3306",
    },
}

项目/config/prod.py 正式环境

# -*- coding: utf-8 -*-
# 正式环境
RUN_MODE = "PRODUCT"
# APP正式环境静态资源目录
STATIC_URL = "/static/"
# APP静态资源目录url
# REMOTE_STATIC_URL = "%sremote/" % STATIC_URL
# 正式环境数据库设置
DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.mysql",
        "NAME": "dbname",  # noqa
        "USER": "root",
        "PASSWORD": "root",
        "HOST": "127.0.0.1",
        "PORT": "3306",
    },
}

项目/config/stag.py 预发布环境

# -*- coding: utf-8 -*-
# 预发布环境
RUN_MODE = "STAGING"
# APP预发布环境静态资源目录
STATIC_URL = "/static/"
# APP静态资源目录url
# REMOTE_STATIC_URL = "%sremote/" % STATIC_URL
DEBUG = True
# 预发布环境数据库设置
DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.mysql",
        "NAME": "dbname",  # noqa
        "USER": "root",
        "PASSWORD": "root",
        "HOST": "127.0.0.1",
        "PORT": "3306",
    },
}

电脑的虚拟环境

windows下，在“系统设置”——“环境变量”——“用户变量”下，点击“新建” 添加进去

判断是什么环境 settings.py

import os
# V3判断环境的环境变量为BKPAAS_ENVIRONMENT
if "BKPAAS_ENVIRONMENT" in os.environ:
    ENVIRONMENT = os.getenv("BKPAAS_ENVIRONMENT", "dev")
# V2判断环境的环境变量为BK_ENV
else:
    PAAS_V2_ENVIRONMENT = os.environ.get("BK_ENV", "development")
    ENVIRONMENT = {
        "development": "dev",
        "testing": "stag",
        "production": "prod",
    }.get(PAAS_V2_ENVIRONMENT)
DJANGO_CONF_MODULE = "config.{env}".format(env=ENVIRONMENT)
try:
    _module = __import__(DJANGO_CONF_MODULE, globals(), locals(), ["*"])
except ImportError as e:
    raise ImportError("Could not import config "%s" (Is it on sys.path?): %s"
                      % (DJANGO_CONF_MODULE, e))
for _setting in dir(_module):
    if _setting == _setting.upper():
        locals()[_setting] = getattr(_module, _setting)

os.environ.get("xx")解释：
os.environ.get("xx") # os.environ是字典。get获得环境变量xx的值
os.environ.get("BK_ENV", "development") # 找BK_ENV，如果没有就输出development
__import__解释：
__import__("os",globals(),locals(),["*"])  #等价于from os import *
__import__("os",globals(),locals(),["path","pip"])  #等价于from os import path, pip
for解释：
for循环全部方法
    如果全部字符都是大写
    局部变量locals()的[_setting] = 获取_module的属性 _setting 值

调用