無法在GeoDjango內置應用

Question

我有在建立空間數據庫，並與GeoDjango內置同步一個真正的麻煩來執行syncdb。我是能夠建立空間數據庫爲每GeoDjango內置文檔，並創建一個Django應用程序，但是當我運行

python manage.py sqlall world

我得到這個，

Traceback (most recent call last): 
    File "manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line 
    utility.execute() 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 261, in fetch_command 
    klass = load_command_class(app_name, subcommand) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 69, in load_command_class 
    module = import_module('%s.management.commands.%s' % (app_name, name)) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module 
    __import__(name) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/core/management/commands/sqlall.py", line 4, in <module> 
    from django.core.management.sql import sql_all 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/core/management/sql.py", line 6, in <module> 
    from django.db import models 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/db/__init__.py", line 40, in <module> 
    backend = load_backend(connection.settings_dict['ENGINE']) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/db/__init__.py", line 34, in __getattr__ 
    return getattr(connections[DEFAULT_DB_ALIAS], item) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/db/utils.py", line 92, in __getitem__ 
    backend = load_backend(db['ENGINE']) 
    File "/home/smaranh/django-env/local/lib/python2.7/site-packages/django/db/utils.py", line 44, in load_backend 
    raise ImproperlyConfigured(error_msg) 
django.core.exceptions.ImproperlyConfigured: 'django.contrib.gis.db.backends.postgis' isn't an available database backend. 
Try using django.db.backends.XXX, where XXX is one of: 
    'dummy', 'mysql', 'oracle', 'postgresql_psycopg2', 'sqlite3' 
Error was: No module named psycopg2.extensions 

我累了，真的不知道該怎麼辦？請幫助

編輯

好吧，我發現這個link哪種告訴我什麼地方出了錯。現在，當我進入python從\家裏，和我執行import psycopg2它並沒有給我任何導入錯誤，但是當我在虛擬ENV中，我得到的導入錯誤

(django-env)smaranh@ubuntu:~/geodjango$ python 
Python 2.7.2+ (default, Oct 4 2011, 20:06:09) 
[GCC 4.6.1] on linux2 
Type "help", "copyright", "credits" or "license" for more information. 
>>> import psycopg2 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
ImportError: No module named psycopg2 

現在鏈接引導我如何附加的路徑，但我不是真的瞭解這個過程，因爲我是新的，我不想進一步搞砸了。那麼請有人請指導我一步一步的如何追加sys.path？

Answer 1

如果您正在使用的virtualenv你需要安裝環境中psycopg2，是這樣的：

pip install psycopg2 

，但你需要在這之前安裝一些軟件包使用apt：

sudo apt-get install python-dev postgresql-server-dev-all