Thanks for your replies.
I had runned `manage.py syncdb` and the db file exists.
I can open the db file in django's manage shell:
>>> f = open('./data/db.db')
>>> f
<open file './data/db.db', mode 'r' at 0x7faa0230>
the permission of the db file is :-rwxrwxrwx
the version of python on cygwin is
Python 2.6.5 (r265:79063, Jun 12 2010, 17:07:01)
[GCC 4.3.4 20090804 (release) 1] on cygwin
also, I can use the APIs of models in manage shell, and sqlite3 can be
imported.
>>> from polls.models import Poll
>>> Poll.objects.filter(id=1)
[<Poll: what's up?>]
>>> import sqlite3
>>> exit()
but the error occurred when i run "python manage.py createsuperuser
--username=jack --email=j...@f.com".
although the error occurred, if i run the command again, it prompt: 'Error:
That username is already taken.'
On Fri, Jan 28, 2011 at 3:24 AM, Daniel Roseman <dan...@roseman.org.uk>wrote:
> On Thursday, January 27, 2011 6:42:29 PM UTC, maki maki wrote:
>
>> hi,
>>
>> I execute the command: python manage.py createsuperuser --
>> username=jack --email=ja...@f.com
>>
>> and an error occurred:
>>
>> Traceback (most recent call last):
>> File "manage.py", line 11, in <module>
>> <snip>
>>
>> File "/usr/lib/python2.6/site-packages/django/db/backends/sqlite3/
>> base.py", line 200, in execute
>> return Database.Cursor.execute(self, query, params)
>> django.db.utils.DatabaseError: unable to open database file
>>
>>
>> the database in settings.py is like this:
>>
>> DATABASES = {
>> 'default': {
>> 'ENGINE': 'django.db.backends.sqlite3', # Add
>> 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
>> 'NAME': '/home/jack/django/mysite/data/
>> db.db', # Or path to database file if using
>> sqlite3.
>> 'USER': '', # Not used with sqlite3.
>> 'PASSWORD': '', # Not used with sqlite3.
>> 'HOST': '', # Set to empty string for
>> localhost. Not used with sqlite3.
>> 'PORT': '', # Set to empty string for
>> default. Not used with sqlite3.
>> }
>> }
>>
>> can someone tell me why the error occurred? Thanks.
>>
>
> Have you run `manage.py syncdb` first? You need that to create the db and
> the tables.
> --
> DR.
>
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