Getting error OverflowError: Python int too large to convert to C long (windows 7)

[atulatri]

Traceback (most recent call last):
File "C:\Python27\Scripts\kp", line 7, in
sys.exit(main())
File "C:\Python27\lib\site-packages\keepassx\main.py", line 187, in main
args.run(args)
File "C:\Python27\lib\site-packages\keepassx\main.py", line 80, in do_get
db = create_db(args)
File "C:\Python27\lib\site-packages\keepassx\main.py", line 59, in create_db
key_file_contents=key_file_contents)
File "C:\Python27\lib\site-packages\keepassx\db.py", line 155, in init
self.metadata.key_encryption_rounds),
File "C:\Python27\lib\site-packages\keepassx\db.py", line 202, in _calculate_key
for i in xrange(num_rounds):
OverflowError: Python int too large to convert to C long