RE Help splitting CVS data

[Garry]

I'm trying to manipulate family tree data using Python.
I'm using linux and Python 2.7.3 and have data files saved as Linux formatted cvs files
The data appears in this format:

Marriage,Husband,Wife,Date,Place,Source,Note0x0a
Note: the Source field or the Note field can contain quoted data (same as the Place field)

Actual data:
[F0244],[I0690],[I0354],1916-06-08,"Neely's Landing, Cape Gir. Co, MO",,0x0a
[F0245],[I0692],[I0355],1919-09-04,"Cape Girardeau Co, MO",,0x0a

code snippet follows:

import os
import re
#I'm using the following regex in an attempt to decode the data:
RegExp2 = "^(\[[A-Z]\d{1,}\])\,(\[[A-Z]\d{1,}\])\,(\[[A-Z]\d{1,}\])\,(\d{,4}\-\d{,2}\-\d{,2})\,(.*|\".*\")\,(.*|\".*\")\,(.*|\".*\")"
#
line = "[F0244],[I0690],[I0354],1916-06-08,\"Neely's Landing, Cape Gir. Co, MO\",,"
#
(Marriage,Husband,Wife,Date,Place,Source,Note) = re.split(RegExp2,line)
#
#However, this does not decode the 7 fields.
# The following error is displayed:
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: too many values to unpack
#
# When I use xx the fields apparently get unpacked.
xx = re.split(RegExp2,line)
#
>>> print xx[0]

>>> print xx[1]
[F0244]
>>> print xx[5]
"Neely's Landing, Cape Gir. Co, MO"
>>> print xx[6]

>>> print xx[7]

>>> print xx[8]

Why is there an extra NULL field before and after my record contents?
I'm stuck, comments and solutions greatly appreciated.

Garry