I'm not sure whether this is your problem, but file permissions
can be fussy with Windows. You might try going into the
manage.py shell and trying to open the file with python's
open builtin, e.g., if the database file already exists:
f = open('path_to/db_file')
or if it doesn't:
f = open('path_to/db_file', 'w)
Permission problems can be subtle. The place I've been bitten
was a native windows install of apache2 not being willing to use
configuration files edited with a tool under cygwin. When I found
a suitable cacls tool, it seemed that the cygwin library created
files with a funky set of permissions, which, while equivalent to
a much simpler set of permissions, worked for most applications,
but apache was very fussy.
It is also possible that sqlite isn't correctly installed. IIRC it's built
into recent pythons, but I don't what python you're using. Older
versions require you to install it separately.
On Thu, Jan 27, 2011 at 1:42 PM, maki maki <[email protected]> wrote:
> hi,
>
> I execute the command: python manage.py createsuperuser --
> username=jack [email protected]
>
> and an error occurred:
>
> Traceback (most recent call last):
> File "manage.py", line 11, in <module>
> execute_manager(settings)
> File "/usr/lib/python2.6/site-packages/django/core/management/
> __init__.py", line 438, in execute_manager
> utility.execute()
> File "/usr/lib/python2.6/site-packages/django/core/management/
> __init__.py", line 379, in execute
> self.fetch_command(subcommand).run_from_argv(self.argv)
> File "/usr/lib/python2.6/site-packages/django/core/management/
> base.py", line 191, in run_from_argv
> self.execute(*args, **options.__dict__)
> File "/usr/lib/python2.6/site-packages/django/core/management/
> base.py", line 220, in execute
> output = self.handle(*args, **options)
> File "/usr/lib/python2.6/site-packages/django/contrib/auth/
> management/commands/createsuperuser.py", line 133, in handle
> User.objects.create_superuser(username, email, password)
> File "/usr/lib/python2.6/site-packages/django/contrib/auth/
> models.py", line 133, in create_superuser
> u.save(using=self._db)
> File "/usr/lib/python2.6/site-packages/django/db/models/base.py",
> line 456, in save
> self.save_base(using=using, force_insert=force_insert,
> force_update=force_update)
> File "/usr/lib/python2.6/site-packages/django/db/models/base.py",
> line 522, in save_base
> rows = manager.using(using).filter(pk=pk_val)._update(values)
> File "/usr/lib/python2.6/site-packages/django/db/models/query.py",
> line 497, in _update
> return query.get_compiler(self.db).execute_sql(None)
> File "/usr/lib/python2.6/site-packages/django/db/models/sql/
> compiler.py", line 866, in execute_sql
> cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)
> File "/usr/lib/python2.6/site-packages/django/db/models/sql/
> compiler.py", line 732, in execute_sql
> cursor.execute(sql, params)
> File "/usr/lib/python2.6/site-packages/django/db/backends/util.py",
> line 15, in execute
> return self.cursor.execute(sql, params)
> 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.
>
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