[Tutor] Cannot open SQLite database
denis.spir at free.fr
Wed Feb 24 11:58:06 CET 2010
On Wed, 24 Feb 2010 09:38:56 +0100
Timo <timomlists at gmail.com> wrote:
> Hello all, my program uses SQLite as database and everything worked fine
> until now.
> I have over 3000 downloads of my program, but I got 2 mails this week
> from people who get this error:
> OperationalError: unable to open database file
> I searched the net, and all problems seem to be of a not writeable
> directory or passing a tilde to connect to the database.
> As far as I know, this isn't the case with my program.
> Here is some code:
> # Get the application data folder
> # This will return: C:\Documents and Settings\user\Application Data\myapp
> PREFDIR = os.path.join(os.environ['APPDATA'], 'myapp')
> # Connect to the database
> def db_connect():
> conn = sqlite3.connect(os.path.join(PREFDIR, 'myapp.db')) # This
> line gives the error
> conn.text_factory = str
> cursor = conn.cursor()
> return (conn, cursor)
I would first add debug lines
print os.path.join(PREFDIR, 'myapp.db')
print os.path.exists(os.path.join(PREFDIR, 'myapp.db'))
print open(os.path.join(PREFDIR, 'myapp.db'), 'r')
print open(os.path.join(PREFDIR, 'myapp.db'), 'a')
conn = sqlite3.connect(os.path.join(PREFDIR, 'myapp.db'))
to check name, existence, read access right, write access right, of the file.
la vita e estrany
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