Question

我在建立空间数据库并将其与GeoDjango混为一谈方面遇到实际困难。我能够按照几andjango文件建立空间数据库,并制作一个连环灯,但一经运行。

<代码>python管理。 py sqlall world

我正在这样做,

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

我很疲 ,实际上不敢做什么? 请帮助

EDIT

Ok I found this link which kind of tells me what went wrong. Now when i get into the python from home, and i execute import psycopg2 it does not give me any ImportError but when i am inside the virtual env, I get the ImportError

(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

现在,联系人指导我如何思考道路,但我并不真正理解这一进程,因为我是新鲜的,我不想再rew。因此,有些人能够用插手来指导我如何修改<条码>sys.path?

Answer 1

If you are using virtualenv you need install psycopg2 inside the environment, something like:

pip install psycopg2

但你需要安装一些包裹,然后才能:

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

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