你的项目是用旧版本的django-admin.py创建的，比django1.3还要旧

为了解决这个问题，创建另一个django项目，复制它的manage.py并粘贴到旧的项目中

================================== 解决方案 =========================================

第一个转到：虚拟环境

通过运行命令: 源bin /激活

然后安装django，因为你会得到与import django相关的错误:

pip install django

然后运行:

python manage.py runserver

(注意:请将'runserver'更改为您要运行的程序名称)

对于同样的问题，它在我的案例中起了作用。 ================================== 剧情简介 =========================================

ERROR:
(Development) Rakeshs-MacBook-Pro:src rakesh$ python manage.py runserver
Traceback (most recent call last):
  File "manage.py", line 8, in <module>
    from django.core.management import execute_from_command_line
ModuleNotFoundError: No module named 'django'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "manage.py", line 14, in <module>
    import django
ModuleNotFoundError: No module named 'django'

在处理上述异常时，发生了另一个异常:

Traceback (most recent call last):
  File "manage.py", line 17, in <module>
    "Couldn't import Django. Are you sure it's installed and "
ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?
(Development) Rakeshs-MacBook-Pro:src rakesh$ 
(Development) Rakeshs-MacBook-Pro:src rakesh$ 
(Development) Rakeshs-MacBook-Pro:src rakesh$ python -Wall manage.py test
Traceback (most recent call last):
  File "manage.py", line 8, in <module>
    from django.core.management import execute_from_command_line
ModuleNotFoundError: No module named 'django'

在处理上述异常时，发生了另一个异常:

Traceback (most recent call last):
  File "manage.py", line 14, in <module>
    import django
ModuleNotFoundError: No module named 'django'

在处理上述异常时，发生了另一个异常:

Traceback (most recent call last):
  File "manage.py", line 17, in <module>
    "Couldn't import Django. Are you sure it's installed and "
ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?

安装django后:

(Development) MacBook-Pro:src rakesh$ pip install django
Collecting django
  Downloading https://files.pythonhosted.org/packages/51/1a/e0ac7886c7123a03814178d7517dc822af0fe51a72e1a6bff26153103322/Django-2.1-py3-none-any.whl (7.3MB)
    100% |████████████████████████████████| 7.3MB 1.1MB/s 
Collecting pytz (from django)
  Downloading https://files.pythonhosted.org/packages/30/4e/27c34b62430286c6d59177a0842ed90dc789ce5d1ed740887653b898779a/pytz-2018.5-py2.py3-none-any.whl (510kB)
    100% |████████████████████████████████| 512kB 4.7MB/s 
Installing collected packages: pytz, django

在解决:

(Development) MacBook-Pro:src rakesh$ python manage.py runserver
Performing system checks...

System check identified no issues (0 silenced).

You have 15 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.
Run 'python manage.py migrate' to apply them.

August 05, 2018 - 04:39:02
Django version 2.1, using settings 'trydjango.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
[05/Aug/2018 04:39:15] "GET / HTTP/1.1" 200 16348
[05/Aug/2018 04:39:15] "GET /static/admin/css/fonts.css HTTP/1.1" 200 423
[05/Aug/2018 04:39:15] "GET /static/admin/fonts/Roboto-Bold-webfont.woff HTTP/1.1" 200 82564
[05/Aug/2018 04:39:15] "GET /static/admin/fonts/Roboto-Light-webfont.woff HTTP/1.1" 200 81348
[05/Aug/2018 04:39:15] "GET /static/admin/fonts/Roboto-Regular-webfont.woff HTTP/1.1" 200 80304
Not Found: /favicon.ico
[05/Aug/2018 04:39:16] "GET /favicon.ico HTTP/1.1" 404 1976

祝你好运! !

我得到这个是因为我忘记了我安装Django使用pip -U，所以它只对运行我的Django应用程序的用户可用。要运行manage.py，我必须这么做

sudo su -s /bin/bash MY_DJANGO_USER
/PATH/TO/MY/APP/manage.py

源~ / blog-venv / bin /激活

在这里选择您的virtualenv来替换“blog-venv”。

它是这样的:

你已经创建了一个虚拟环境，django模块只属于这个虚拟环境。由于virtualenv将自己与其他所有东西隔离，因此您看到了这个。

阅读以下内容以获得进一步帮助:

http://www.swegler.com/becky/blog/2011/08/27/python-django-mysql-on-windows-7-part-i-getting-started/

1.你可以切换到虚拟环境所在的目录，然后运行django模块。

2.或者你也可以通过运行pip或easy_install将django全局安装到你的python->site-packages中

使用pip命令:pip安装django

然后这样做:

进口django Print (django.get_version())(取决于你使用的python版本。适用于python 3+系列)

然后你可以运行这个: Python manage.py runserver 在浏览器中输入:localhost:8000进行检查 你应该会看到django powered page。

希望这能有所帮助。

众所周知，这是一个路径问题。

我的自定义包的基础与/etc/profile中设置的目录共享一个名称然而，对于web服务器，这些包位于不同的位置。因此，我从$PYTHONPATH中删除了有问题的条目，一切就绪!

谢谢你的帮助。