bsddb module in Python 2.3 cannot read 
SourceNavigator output (old btree format):

Python 2.3.3 (#51, Dec 18 2003, 20:22:39) [MSC 
v.1200 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more 
information.
>>> import bsddb
>>> a = bsddb.btopen('jEdit_14-12-2004.cl')
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "C:\Program Files\Python23\lib\bsddb\__init__.py", 
line 209, in btopen
    d.open(file, db.DB_BTREE, flags, mode)
bsddb._db.DBInvalidArgError: (22, 'Invalid argument -- 
jEdit_14-12-2004.cl: unexpected file type or format')

With Python 2.2 the file is opened without problem.

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