Import Error: No module named django

问题:

I am using centos linux.

I had python 2.6 with django and now i upgraded to python 2.7.
Python 2.6 is located in /usr/lib/python2.6.
Python 2.7 is located in /usr/local/lib/python2.7.
They both have site-packages directory and they both contain django 1.2.

If i run python i get the 2.7 version.
My problem is that if try to import django i get

ImportError: No module named django

I am not sure where is my PYTHONPATH defined and if this is what i need to change. anyone ?

i ended up making a symbolic link to the 2.6 site-packages directory.

回答1:

To check your path, you can use the following code:

import sys     
print(sys.path)

If you already know where django is installed, it should be easy to test if the desired directory is in your path with directory in sys.path.

Regarding where your PYTHONPATH is defined, note that it's an environment variable, so you can check its value (if defined) with: echo $PYTHONPATH

回答2:

Under linux, you can set the PYTHONPATH environment variable in your .profile or .bashrc. You can either edit it directly from the terminal by changing to your home directory (cd ~), and then edit the file (nano .bashrc), or by opening the file with gtkedit or vim or whatever, and add:

PYTHONPATH=/usr/local/lib/python2.7/site-packages:/another/path/etc

If you want to test this before editing your profile, you can export this from the terminal as:

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

I'm assuming you're running this straight from the command line. If you're running it as a wsgi module in apache, you can add this to your syspath from your wsgi file as:

import sys
sys.path.append('/usr/local/lib/python2.7/site-packages')

回答3:

I had the same error, and this fix my issue

python -m pip install django

:) Done!

回答4:

try

pip freeze

this command show which packages are installed in your system then run with root privilege

pip install django

then create a new project with command

django-admin.py startproject mysite

then start your project

cd path/to/mysite
./manage.py runserver 

in file wsgi.py add this lines

import os
import sys
DJANGO_PATH =  os.path.join(os.path.abspath(os.path.dirname(__file__)), '..')
sys.path.append(DJANGO_PATH)

回答5:

Try printing sys.path to see what's in your path. Django need to be in one of the dirs listed. Example on Windows:

>>> import sys
>>> for p in sys.path: print p

C:\Python27\Lib\idlelib
C:\Windows\system32\python27.zip
C:\Python27\DLLs
C:\Python27\lib
C:\Python27\lib\plat-win
C:\Python27\lib\lib-tk
C:\Python27
C:\Python27\lib\site-packages
>>>