why cannot I  find ogr's driver?
Meanwhile I found that ogr.GetDriverCount() is 0 !.....
How should I do ? please help me

>>> import ogr
>>> driver=ogr.GetDriverByName("ESRI Shapefile")

Traceback (most recent call last):
  File "", line 1, in ?
  File "C:\Program Files\Python24\lib\site-packages\ogr.py", line 374,
in GetDriverByName
    raise OGRError, 'Unable to find ogr.Driver named "%s".' % name
OGRError: Unable to find ogr.Driver named "ESRI Shapefile".