[Python] Python and Django fails to run [python manage.py sql application]

Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "D:\PythonPack\lib\site-packages\django\core\management\__init__.py", lin
e 443, in execute_from_command_line
utility.execute()
File "D:\PythonPack\lib\site-packages\django\core\management\__init__.py", lin
e 382, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "D:\PythonPack\lib\site-packages\django\core\management\base.py", line 19
6, in run_from_argv
self.execute(*args, **options.__dict__)
File "D:\PythonPack\lib\site-packages\django\core\management\base.py", line 23
2, in execute
output = self.handle(*args, **options)
File "D:\PythonPack\lib\site-packages\django\core\management\base.py", line 30
4, in handle
app_output = self.handle_app(app, **options)
File "D:\PythonPack\lib\site-packages\django\core\management\commands\sqlall.p
y", line 19, in handle_app
return u'\n'.join(sql_all(app, self.style, connections[options.get('database
')])).encode('utf-8')
File "D:\PythonPack\lib\site-packages\django\core\management\sql.py", line 145
, in sql_all
return sql_create(app, style, connection) + sql_custom(app, style, connectio
n) + sql_indexes(app, style, connection)
File "D:\PythonPack\lib\site-packages\django\core\management\sql.py", line 26,
in sql_create
tables = connection.introspection.table_names()
File "D:\PythonPack\lib\site-packages\django\db\backends\__init__.py", line 89
5, in table_names
cursor = self.connection.cursor()
File "D:\PythonPack\lib\site-packages\django\db\backends\__init__.py", line 30
6, in cursor
cursor = self.make_debug_cursor(self._cursor())
File "D:\PythonPack\lib\site-packages\django\db\backends\sqlite3\base.py", lin
e 281, in _cursor
self._sqlite_create_connection()
File "D:\PythonPack\lib\site-packages\django\db\backends\sqlite3\base.py", lin
e 271, in _sqlite_create_connection
self.connection = Database.connect(**kwargs)
sqlite3.OperationalError: unable to open database file


I follow this tutorial https://docs.djangoproject.com/en/dev/intro/tutorial01/ and I run into the above errors when trying to execute the command

python manage.py sql polls


Anyone knows what might be the problem ? Thank you a lot.

ANAGERS = ADMINS

DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
'NAME': 'E:\Python\mysite\sqlitedb', # 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.
}
}



INSTALLED_APPS = (
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
# Uncomment the next line to enable the admin:
# 'django.contrib.admin',
# Uncomment the next line to enable admin documentation:
# 'django.contrib.admindocs',
'polls',
)

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