problem in with keyword

[Murali kumar]

hi all..

my application runs fine in windows xp using python 2.6 and wxpython 2.8.9

but in ubuntu 8.10 following error appears..  using python 2.5.2 and
wxpython 2.8.9

/home/murali/Desktop/mathdemo-configfinal/manageprofile.py:63: Warning:
'with' will become a reserved keyword in Python 2.6
Traceback (most recent call last):
  File "test.py", line 8, in <module>
    import manageprofile as managepf
  File "/home/murali/Desktop/mathdemo-configfinal/manageprofile.py", line 63
    with open(self.profile, 'wb') as configfile:
            ^
SyntaxError: invalid syntax

help for this problem..

Advanced thanks..
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