failed connect QGIS plugin with access 2007 database using pyodbc - python-2.7

Question

I m Running Win 7 32 bit and i using python 27, i try to connect ms-access database in my QGIS plugin using pyodbc, but when i launch it i have a following error :
Traceback (most recent call last):
File "C:/PROGRA~1/QGISDU~1/apps/qgis/./python\qgis\utils.py", line 204, in startPlugin
plugins[packageName] = package.classFactory(iface)
File "C:\Users\Mr.Pakde/.qgis2/python/plugins\TestDbase\__init__.py", line 26, in classFactory
from testdbase import TestDbase
File "C:/PROGRA~1/QGISDU~1/apps/qgis/./python\qgis\utils.py", line 453, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:\Users\Mr.Pakde/.qgis2/python/plugins\TestDbase\testdbase.py", line 29, in
from testdbasedialog import TestDbaseDialog
File "C:/PROGRA~1/QGISDU~1/apps/qgis/./python\qgis\utils.py", line 453, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:\Users\Mr.Pakde/.qgis2/python/plugins\TestDbase\testdbasedialog.py", line 28, in
r'DBQ=C:\__tmp\test1.accdb')
Error: ('HY024', "[HY024] [Microsoft][ODBC Microsoft Access Driver] '(unknown)' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides. (-1023) (SQLDriverConnect); [HY024] [Microsoft][ODBC Microsoft Access Driver] '(unknown)' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides. (-1023)")
And i place it like this in my code :
from PyQt4 import QtCore, QtGui
from ui_testdbase import Ui_TestDbase
import pyodbc
db = pyodbc.connect(
r'DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};' +
r'DBQ=C:\__tmp\test1.accdb')
class TestDbaseDialog(QtGui.QDialog):
def __init__(self):
QtGui.QDialog.__init__(self)
# Set up the user interface from Designer.
self.ui = Ui_TestDbase()
self.ui.setupUi(self)
Rec_1 = self.ui.btnOke
QtCore.QObject.connect(Rec_1, QtCore.SIGNAL('clicked()'),self.Compskala)
def Compskala(self):
skal1 = self.ui.lineSkal1.text()
skal2 = self.ui.lineSkal2.text()
bandskal = ''
if skal1 == skal2:
bandskal = 'Kedua Peta dapat dipadukan'
I really a newb in this, so can someone give me a help?

Answer 1

Substituting backslashes for forward slashes in the filename seems to work:
Fails
>>> db = pyodbc.connect("DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};" +
"DBQ=C:\__tmp\test.accdb")
Traceback (most recent call last): File "", line 1, in
pyodbc.Error: ('HY000', '[HY000] [Microsoft][ODBC Microsoft
Access Driver] Not a valid file name. (-1044) (SQLDriverConnect)')
Succeeds
>>> db = pyodbc.connect("DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};" +
"DBQ=C:/__tmp/test.accdb")
>>> connection.getinfo(pyodbc.SQL_SERVER_NAME)
'ACCESS'