Django Import Error: No module named apps

问题

I just checked out a project with git. The project structure is

project
  apps
    myapp
      settings
        __init__.py
      __init__.py
    manage.py

There are other directories and files, but I think those are the important ones.

When I run the server I get

    Traceback (most recent call last):
  File "C:/Dev/project/apps/manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 385, in execute_from_command_line
    utility.execute()
  File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 345, in execute
    settings.INSTALLED_APPS
  File "C:\Python27\lib\site-packages\django\conf\__init__.py", line 46, in __getattr__
    self._setup(name)
  File "C:\Python27\lib\site-packages\django\conf\__init__.py", line 42, in _setup
    self._wrapped = Settings(settings_module)
  File "C:\Python27\lib\site-packages\django\conf\__init__.py", line 98, in __init__
    % (self.SETTINGS_MODULE, e)
ImportError: Could not import settings 'apps.myapp.settings' (Is it on sys.path? Is there an import error in the settings file?): No module named apps.myapp.settings

When running manage.py check I get ImportError: No module named apps. so I guess the problem has nothing to do with my setting module but with my apps directory. I'm not sure why it can't find my module apps, because project is on my sys.path and the direcory apps obviously exists. As I'm not very experienced as a Python developer I don't find a solution myself.

回答1:

You need to add an empty __init__.py (4 underscores in total) file in the apps folder for it to be recognized by Python as a package.

Have a look at the documentation for more informations.

回答2:

Note that in Django 1.9 there is a module called django.apps

Avoiding name clashes with built-in modules is generally advised

回答3:

If you've used the django-admin startapp myapp command, it creates this file: myapp/apps.py.

It could be conflicting with your apps/ module folder. A hidden apps.pyc file could be in your myapp/ folder.

Try removing these:

project/apps/myapp/apps.py
project/apps/myapp/apps.pyc

回答4:

This can also happen if you installed your app in settings.py in your main project folder, before running this:

python manage.py startapp [app-name]

Comment it out, create the app (should work now), then put the line back into the settings.py file and continue on.

回答5:

Note that in Django 1.9, you can add your app into the INSTALLED_APPS list.

If your app name is app and you have created models in it, then go to the settings.py file and add your app:

INSTALLED_APPS = [
    ...
    'app'
]

回答6:

If you use this command to start an app:

django-admin startapp appexample

...then, the AppexampleConfig class should not be listed in the settings.py file.

Just add the app name (e.g. appexample) in INSTALLED_APPS list. Avoid using: appexample.app.AppexampleConfig.

Usually, the AppexampleConfig class is a subclass of the django.apps.Appconfig class that represents a Django application and its configuration. It just defines the name class attribute and sets its value to Appexample.

回答7:

Command: python manage.py startapp app_name

Class name must be the same as app_name in models.py file and then add your app_name in the INSTALLED_APPS list in settings.py.

回答8:

First, check your manage.py and make sure it has the correct reference to myapp.

...apps/myapp/manage.py

...
if __name__ == "__main__":
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myapp.settings")
...

If the settings are correct, check the Python interpreter. If you're using virtualenv, errors can occur when you use the global Python instead of the virtual environment. The use of global Python can be caused by improperly setting up your IDE, user error or incorrect bin/bash in manage.py.

To make sure manage.py is running on the virtual env, check the first line in manage.py. By default the file reads:

#!/usr/bin python

Change that to:

#!/path/to/virtualenv/bin python

Now, check the Terminal and what Python version it's using. Then, activate the virtualenv:

[user@pc] #: source /path/to/virtualenv/bin/activate 
(venv) [user@pc] #: pip list

Confirm Django is installed. If it is and it's still not working correctly, then upgrade it with pip:

(venv) [user@pc] #: pip install --upgrade django

If none of the above works even though the Python version is correct, you're using the right Python environment and manage.py is set up correctly, then that means the error is somewhere else.

回答9:

I got past this issue after running python3 manage.py runserver instead of python manage.py runserver Wasted a solid 25 minutes on that one...

回答10:

Please make that your app is in the root directory of your project. By this I mean if by mistake you start an app outside your main directory, Django will not be able to find your app and the only solution is to move it to your project's main directory. The screenshots show how to fix the problem enter image description here the first images show the wish also prompts this error that your apps are not loaded yet when you run the app.

The second screenshot shows how to fix the problem. enter image description here This is what I mean that the app should be in the same directory of the main project. In my case my main directory is crmapp.

来源：https://stackoverflow.com/questions/30001009/django-import-error-no-module-named-apps

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python

django

module