Numeric fields in .35

I am getting an error when I try to select a numeric(6,2) field from a
table.  Here is the code:

    # connect to the database
    db = Sybase.connect('peach5026d', 'may', 'maymay', 'nci_dev')
    c = db.cursor()
    c.arraysize = 64
    c.execute("SELECT volume FROM vial WHERE study_id = 'AHS'")

    while 1:
        rows = c.fetchmany()
        if not rows : break

        for row in rows:
            print row

    c.close()

and here is the error:

(
Traceback (most recent call last):
  File "./test_sybase.py", line 17, in ?
    print row
ValueError: no globla context defined

Searching on the other fields work fine.  Also, changing the SQL to read

   SELECT convert(float, volume) FROM vial WHERE study_id = 'AHS'"

also fixes the error.

Chuck