我修复了这个问题，通过改变#PATH="$VIRTUAL_ENV/bin:$PATH"到PATH="$PATH:$VIRTUAL_ENV/bin" 由于我不明显的原因，在virtualenv目录下的python可执行文件看不到django，但正常安装的python可以。

================================== 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! !

完全同意这是一个路径问题，但我有同样的错误。这是由于在设置虚拟环境时错误地为我的Python可执行文件使用了相对路径。我是这样做的:

virtualenv -p ~/python_runtimes/2.7.3/bin/python venv2.7.3 --distribute

相反，我必须给出Python可执行文件的完整路径。

HTH, 哈林

在我发出startapp命令之前，我将新应用程序的名称包含在settings.py中的INSTALLED_APPS列表中。一旦我删除了列表条目，我就可以创建应用程序。

对于那些使用Django 1.6或更新版本的人，请注意execute_manager已被删除。在第二个SO答案中有一个答案。

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。