重新启动计算机并得到：ImportError：没有名为django.core.management的模块

Question

I have been having some issues with gulp serving my files so I restarted my computer, upon going back to my project and starting the server I suddenly got the error: ImportError: No module named django.core.management .

I am working locally and in my files I can see the django folder - it's path is: MAMP/Library/lib/python2.7/site-packages/mysql/connector/django

The full error looks like this:

    Message:
    Command failed: /bin/sh -c ./manage.py runserver
Traceback (most recent call last):
  File "./manage.py", line 11, in <module>
    from django.core.management import execute_from_command_line
ImportError: No module named django.core.management

Details:
    killed: false
    code: 1
    signal: null
    cmd: /bin/sh -c ./manage.py runserver
    stdout: 
    stderr: Traceback (most recent call last):
  File "./manage.py", line 11, in <module>
    from django.core.management import execute_from_command_line
ImportError: No module named django.core.management

My manage.py looks like this:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import unicode_literals

import os
import sys

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

    from django.core.management import execute_from_command_line

    execute_from_command_line(sys.argv)

running which python gives me this: /usr/bin/python

I am not sure if I am running in a virtual enviornment or not. I am doing the front-end of this project, the enviornment was set up and installed by someone else for me - but running python -c 'import sys; print sys.real_prefix' 2>/dev/null && INVENV=1 || INVENV=0 python -c 'import sys; print sys.real_prefix' 2>/dev/null && INVENV=1 || INVENV=0 python -c 'import sys; print sys.real_prefix' 2>/dev/null && INVENV=1 || INVENV=0 (as another post suggested to check if I was in a virtual enviornment) returned nothing.

I have looked through some of the other posts and see that some people have reinstalled, others have modified paths, others say NOT to edit the manage.py file - but since I am not really sure if the problem is the path or the install I am not sure how to proceed.If you need more info please let me know.

Answer 1

You're missing python packages which means you're VirtualEnv isn't activated.

VirtualEnv creates a folder named env by default (though the name can be changed) which is where it stores the specific python installation and all it's packages. Search for the activate bash script in your project folder. Once you locate you can source it.

source ./env/bin/activate

In the interest of completeness, in Windows it would be a batch file.

env/bin/activate.bat

You'll know you're in a virtualenv when your command prompt is prefixed by the env name, for example (env) Macbook user$ .

You can now start your django test server.

python manage.py runserver

To deactivate, simply type deactivate at any time in your command prompt. The (env) prefix on the prompt should disappear.