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        在 Windows 中将 DJANGO_SETTINGS_MODULE 永久设置为环境变量

        时间:2023-07-04

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                  本文介绍了在 Windows 中将 DJANGO_SETTINGS_MODULE 永久设置为环境变量的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  如何在 WINDOWS 上永久设置环境变量 DJANGO_SETTINGS_MODULE 并完成?

                  我是说

                  1. Win 按钮 + 暂停/中断按钮
                  2. 这会导致 Control PanelSystem and SecuritySystem
                  3. 点击高级系统设置
                  4. 点击环境变量
                  5. 有两个框,第一个标题为 User variables,第二个标题为 System variables
                  6. 系统变量上点击New Button
                  7. 对于变量名放入 DJANGO_IMPORT_SETTINGS

                  XXX--> 我应该在变量值中添加什么来一次性设置它?

                  <小时>

                  在这个 issue 的 Django 站点中,它指出:p>

                  DJANGO_SETTINGS_MODULE

                  当你使用 Django 时,你必须告诉它你正在使用哪些设置.通过使用环境变量 DJANGO_SETTINGS_MODULE 来执行此操作.

                  DJANGO_SETTINGS_MODULE 的值应该是 Python 路径语法,例如mysite.settings.请注意,设置模块应位于 Python 导入搜索路径中.

                  <小时>

                  这是什么意思 ...应该是 Python 路径语法,例如mysite.settings... ?

                  • 我的 Python 位于某个目录:C:Python27
                  • 我的 Django 位于某个目录:C:Python27Libsite-packagesdjango

                  这个 mysite 是什么意思.什么目录是什么意思 C:Something......

                  你能不能一劳永逸地把这个变量或者你必须为每个项目不断地改变它(我希望不是!)

                  这条可疑的线是什么意思请注意,设置模块应该在 Python 导入搜索路径上.

                  我只希望它设置 DJANGO_SETTINGS_MODULE 环境变量并一劳永逸地完成这个麻烦

                  编辑

                  为了工作,Django 只需要指向一个有效的设置文件,默认情况下它查找名为 DJANGO_SETTINGS_MODULE 的环境变量,告诉它在哪里可以找到设置.这个变量的值应该是设置文件的Python导入路径,比如作为 cms.settings.

                  --> 这是什么目录之王:cms.settings?在 Windows 中,每个目录都以 C:Something..... 形式的硬盘驱动器开始.如何在 Windows 中启动这样的目录?

                  EDIT_2

                  摘自一本书

                  问题环境变量 DJANGO_SETTINGS_MODULE 未定义.

                  解决方案运行命令 python manage.py shell 而不是 python.

                  我的问题 --> 在哪个目录上?///您可以设置一次还是每个项目都不同?

                  我的项目结构是这样的

                  C:Python27pysec-master(文件)|__local_settings.py|__manage.py|__settings.py|__C:Python27pysec(文件)|__ __init__.py|__example.py|__models.py|__xbrl.py|__xbrl_fundamentals.py

                  我正在尝试运行 models.py 并且我在 C:Python27pysec-master 中有一个 settings.py您可以在这里找到准确的副本.

                  MAYBE_IMPORTANT_EDIT

                  我的项目中有一个名为 manage.py 的文件,其中包含这些内容

                  #!/usr/bin/env python导入操作系统导入系统如果 __name__ == "__main__":os.environ.setdefault("DJANGO_SETTINGS_MODULE", "设置")从 django.core.management 导入 execute_from_command_lineexecute_from_command_line(sys.argv)

                  这对设置变量有影响吗?我需要在循环内设置这里吗?

                  编辑

                  对于 IDLE from django.db import settings 中的命令,我是否需要为 PYTHON_MODULE_SETTINGS 设置一个目录,例如 C:Python27Lib站点包djangodb ?

                  解决方案

                  好吧,别这么沮丧.让我们一步一步来看看:

                  • Python 路径语法:

                    在 Python 中,当您跨模块拆分代码库时,您可以使用模块名称来限定导入的名称.假设您的项目结构如下:

                    我的项目|__实用程序||____init__.py||__file_utils.py|__my_module|____init__.py|__main.py

                    在你的 main.py 中,如果你想访问你在 file_utils.py 中定义的方法,你可以在 main.py 中添加一个 import 语句代码> 像这样:

                    导入 utils.file_utils.read_file

                    假设 read_file 是您要导入 main.py 的方法.这种以 . 分隔每个模块的模块导入方式称为 python 路径语法.

                  • PYTHONPATH:

                    在上面的例子中,只有当 Python 解释器知道在哪里寻找第一个模块,即 utils 时,import 语句才会起作用.只有找到utils 才能找到file_utilsread_file.您可以在环境变量 PYTHONPATH 中指定您希望解释器查看的所有路径的列表.因此,为了在您的代码中使用上述导入语句,您必须确保项目 my_project 的完整路径位于 PYTHONPATH 中.假设 my_projectC:AMAZEBALLS_CODEmy_project 你应该有 C:AMAZEBALLS_CODE 在你的 PYTHONPATH

                  • DJANGO_SETTINGS_MODULE:

                    现在让我们假设您的 my_project 实际上是一个 Django 应用程序.Django 应用程序需要一个设置文件,您可以在其中指定一大堆东西.为了指示 Django 要查看哪个设置文件,您在 DJANGO_SETTINGS_MODULE 中指定它.假设这是您的项目结构:

                    我的项目|__utils/||____init__.py||__file_utils.py|__my_module/||____init__.py||__main.py|__site_settings/|__dev_settings.py|__production_settings.py

                    myroject.site_settings 是 Django 必须查找设置文件的模块.在上述情况下,myroject.site_settings.dev_settings 是您需要设置为 DJANGO_SETTINGS_MODULE 的值.当文档说 cms.settingsmysite.settings 时,它们的意思是 cmsmysite 是您的项目的名称,并且settings.py 是您的设置文件的名称.

                  现在让我们看看你的问题:

                  可以在Windows的环境变量中永久设置吗?当然.
                  这是正确的方法吗?没有.

                  因为如果您想明天在另一个位置创建另一个应用程序,您必须在 Windows 的环境变量部分进行编辑.此外,对开发环境使用不同的设置文件,对生产环境使用另一个设置文件是一种做法.因此,将其设置在一个具有一个值的位置会使其不灵活.但是,如果您了解以上所有内容,并确定您将在 env 变量部分中仅使用一个设置文件集 DJANGO_SETTINGS_MODULEmyproject.site_settings.dev_settings.

                  希望这会有所帮助!

                  看起来您将 pysec-master 项目放在 C:Python27 中.不要将您的项目放在 python 安装中.在您的项目中创建一个 settings.py 文件并将 DJANGO_SETTINGS_MODULE 设置为 pysec-master.settings

                  How can I permanently set the environmental variable DJANGO_SETTINGS_MODULE on WINDOWS on a permanent basis and be done with it?

                  I mean

                  1. Win Button + Pause/Break Button
                  2. This leads to Control PanelSystem and SecuritySystem
                  3. Click Advanced System Settings
                  4. Click Environment Variables
                  5. There are two boxes the first is titled User variables and the second System variables
                  6. On the System variables click the New Button
                  7. For variable name put in DJANGO_IMPORT_SETTINGS

                  XXX--> WHAT DO I PUT IN VARIABLE VALUE TO SET IT ONCE AND FOR ALL?


                  In the Django Site on this issue it states:

                  DJANGO_SETTINGS_MODULE

                  When you use Django, you have to tell it which settings you’re using. Do this by using an environment variable, DJANGO_SETTINGS_MODULE.

                  The value of DJANGO_SETTINGS_MODULE should be in Python path syntax,e.g. mysite.settings. Note that the settings module should be on the Python import search path.


                  What does it mean ...should be in Python path syntax e.g. mysite.settings... ?

                  • I have a certain directory where my Python is located: C:Python27
                  • I have a certain directory where my Django is located: C:Python27Libsite-packagesdjango

                  What does this mysite means. What directory is it meanning C:Something......

                  Can you put this variable once and for all or you have to constantly change it for every project (I hope not!)

                  And what does this suspiciously line means Note that the settings module should be on the Python import search path.

                  All I want it to set the DJANGO_SETTINGS_MODULE environmental variable and be done once and for all from this hassle

                  EDIT

                  In order to work, Django just has to be pointed at a valid settings file, and by default it looks for an environment variable named DJANGO_SETTINGS_MODULE to tell it where to find the settings. The value of this variable should be the Python import path of the settings file, such as cms.settings.

                  --> What king of directory is this: cms.settings? In windows every directory starts with a hard drive as C:Something...... How can you start a directory like this in Windows?

                  EDIT_2

                  Excerpt from a book

                  PROBLEM Environment variable DJANGO_SETTINGS_MODULE is undefined.

                  SOLUTION Run the command python manage.py shell rather than python.

                  MY QUESTION --> ON WHAT DIRECTORY?///CAN YOU SET IT FOR ONCE OR IS IT DIFFERENT PER PROJECT?

                  MY PROJECT IS STRUCTURED LIKE THIS

                  C:Python27pysec-master(file)
                  |__local_settings.py
                  |__manage.py
                  |__settings.py
                  |__C:Python27pysec(file)
                     |__ __init__.py
                     |__example.py
                     |__models.py
                     |__xbrl.py
                     |__xbrl_fundamentals.py
                  

                  I am trying to run models.py and I have a settings.py in the C:Python27pysec-master You can find an exact copy here.

                  MAYBE_IMPORTANT_EDIT

                  I have a file called manage.py in my project which has these contents

                  #!/usr/bin/env python
                  import os
                  import sys
                  
                  if __name__ == "__main__":
                      os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")
                  
                      from django.core.management import execute_from_command_line
                  
                      execute_from_command_line(sys.argv)
                  

                  Does this has to do anything on setting the variable? Do I need to set here here inside the loop?

                  EDIT

                  For the command in the IDLE from django.db import settings do i need to set a directory for the PYTHON_MODULE_SETTINGS like C:Python27Libsite-packagesdjangodb ?

                  解决方案

                  Okay, don't be so frustrated. Let's look at this step by step:

                  • Python path syntax:

                    In Python, when you split your code base across modules, you qualify the name of the import with the name of the module. Let's say your project is structured like this:

                    my_project
                    |__utils
                    |  |____init__.py
                    |  |__file_utils.py
                    |__my_module
                       |____init__.py
                       |__main.py
                    

                    In your main.py if you want to access methods you have defined in file_utils.py you add an import statement in your main.py like this:

                    import utils.file_utils.read_file
                    

                    assuming read_file is the method you want to import into main.py. This way of importing modules where you have a . separating every module is referred as python path syntax.

                  • PYTHONPATH:

                    In the above example, the import statement would work only if the Python interpreter knows where to look for the first module namely the utils. Only when it finds utils can it find file_utils and read_file. You specify the list of all the paths you want the interpreter to look into in the environment variable PYTHONPATH. So in order to have an import statement like above in your code, you have to make sure that the full path to your project my_project is in PYTHONPATH. Assuming my_project is in C:AMAZEBALLS_CODEmy_project you should have C:AMAZEBALLS_CODE in your PYTHONPATH

                  • DJANGO_SETTINGS_MODULE:

                    Now let's suppose your my_project is actually a Django application. A Django application needs a settings file where you specify a whole bunch of things. In order to instruct Django which settings file to look into you specify it in DJANGO_SETTINGS_MODULE. Assuming this is your project structure:

                    my_project
                    |__utils/
                    |  |____init__.py
                    |  |__file_utils.py
                    |__my_module/
                    |  |____init__.py
                    |  |__main.py
                    |__site_settings/
                       |__dev_settings.py
                       |__production_settings.py
                    

                    myroject.site_settings is the module Django has to look into for the settings file. And myroject.site_settings.dev_settings is the value you need to be setting to the DJANGO_SETTINGS_MODULE in the above case. When documentation says cms.settings or mysite.settings they mean cms or mysite is the name of your project and settings.py is the name of your settings file.

                  Now let's look at your question:

                  Can you permanently set it in the environment variables of Windows? Sure.
                  Is it the right way? No.

                  Because if you want to create another application tomorrow in another location, you will have to edit this in the environment variables section of Windows. Also, it is a practice to use a different settings file for development environment and another one for production. So setting it at one place with one value makes it inflexible. But if you are aware of all of the above and sure you are gonna be using just the one settings file set DJANGO_SETTINGS_MODULE to myproject.site_settings.dev_settings in the env variables section.

                  Hope this helps!

                  EDIT:

                  Looks like you are putting your pysec-master project in C:Python27. Do not put your projects in the python installation. Create a settings.py file in your project and set DJANGO_SETTINGS_MODULE to pysec-master.settings

                  这篇关于在 Windows 中将 DJANGO_SETTINGS_MODULE 永久设置为环境变量的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

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