Problem on getting date column in SQLObject

[CL (Ciu Loeng) Lam]

Hi,all:I make the SQLObject as the ORM in turbogears ,now I meet a problems
on selecting records for a given date . Here is the define for my class:
class updateHistory(SQLObject):
    actionTime =  DateTimeCol(default=datetime.now)
    actionContent = UnicodeCol(length=500,default="")

Then how can I  get the records during a special time ,for example , from
2008-05-10 to 2008-09-01,
It will be very thankful if someone could paste some snippets for this
problems.
Thanks in advance.
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