ImportError: No module named django.core.managemen

问题:

I'm trying to run python manage.py runserver on a Django application I have and I get this error:

Traceback (most recent call last):
File "manage.py", line 8, in <module>
 from django.core.management import execute_from_command_line
ImportError: No module named django.core.management

Here is the output of pip freeze | grep -i django to show I do in fact have Django installed:

Django==1.6.5
django-cached-authentication-middleware==0.2.0
django-cors-headers==1.1.0
django-htmlmin==0.7.0
django-static-precompiler==0.9
djangorestframework==2.3.14

Also, trying to run /usr/local/bin/python2.7 manage.py runserver yields the same error.

回答1:

Possible issues that may cause your problem:

1. PYTHONPATH is not well configured, to configure it you should do:

   export PYTHONPATH=/usr/local/lib/python2.7/site-packages
   

2. You forgot the line #!/usr/bin/env python at the beginning of manage.py

3. If you're working on virtualenv you forgot to activate the virtual env to execute manage.py commands (You may have installed Django on your system but not on your virtualenv)

   source path/to/your/virtualenv/bin/activate
   

   or

   workon env_name
   

4. You have Python 2.7 and Python 3.4 messing with the package

5. You're using a very old Python 2.4 and you should tell the system to use your Python 2.7 with:

   alias python=python2.7
   

Some times reinstalling/upgrading Django fix some of those issues.

You may want to execute

python -c "import django; print(django.get_version())"

to check if Django is installed on your PC or your virtualenv if you're using one

You can find some other solutions in other similar questions:

• Django import error
• Django uwsgi error
• Django module error

回答2:

To fix my problem I used the following line in my .zprofile:

export PYTHONPATH=/usr/local/lib/python2.7/site-packages

I was trying to import Django and it couldn't be found, and doing the above solved the issue.

回答3:

I solved this same error by running the below command:

python3.4 manage.py runserver

And the above command successfully executed for me. So what you can try is, if you are using python 2.7 then just replace 3.4 with 2.7. Hope this helps.

回答4:

I came across the same issue when I did all the setup and run for django with Python3 but ran the following command:

$ python manage.py migrate

fixed the issue by using a consistent version of Python:

$ python3 manage.py migrate
Operations to perform:
  Apply all migrations: sessions, auth, admin, contenttypes
Running migrations:
  Rendering model states... DONE
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0002_alter_permission_name_max_length... OK
  Applying auth.0003_alter_user_email_max_length... OK
  Applying auth.0004_alter_user_username_opts... OK
  Applying auth.0005_alter_user_last_login_null... OK
  Applying auth.0006_require_contenttypes_0002... OK
  Applying auth.0007_alter_validators_add_error_messages... OK
  Applying sessions.0001_initial... OK

Other commands I ran before this were:

python3 -m pip install django
django-admin startproject learning_site
python3 manage.py  runserver 0.0.0.0:8000

回答5:

If you use virtualenv and run manage.py runserver in windows system, cmd will use system's python, not the python in virtualenv. Because If you install python in system, cmd will automatically use python that installed in system, not the python in virtualenv. So if you use virtualenv in Windows. you need run

>python .\manage.py runserver

回答6:

That error is due to the user environment. Indeed i just add the virtuel environment bin path to PATH and the problem has been solved.

PATH=/bin/of_virtualenvironment/:$PATH

回答7:

The direct problem is that django package is missing. For me, as I was running django in virtualenv, this problem occurs after I rename my working directory.

Reinstalling the env worked for me.

回答8:

in where your django file resides, check the first line of django-admin.py:

#!/usr/bin/env python

If you use python 3+, python here may refers python2 here. So check which python you install django with.

ls -l $(which -a python3)

If you do have python3 installed and not linked as python, change the first shebang line into

#!/usr/bin/env python3

回答9:

Also, make sure you did not mess up your .bashrc with aliases. You would get this kind of errors if .bashrc contains something like alias python="/usr/bin/python3".

回答10:

I found that I could import the django module from the python interpreter, but django-admin.py could not import it when run from the command line.

I confirmed that I was using the python interpreter in my virtual environment.

I was using a 64-bit version of python. Uninstalling, and installing the 32-bit version, then re-creating my venv solved this for me.

回答11:

Fixed the same problem in my project using only;

pip install -r requirements.txt

I didn't have to do anything else. When I ran./manage.py runserver everything worked!

回答12:

i solved this problem by installing django inside the virtual enviromment that i was working on