printing error message from an Exception

[mark jason]

hi
I was trying out some file operations and was trying to open a non
existing file as below

def do_work(filename):
    try:
        f = open(filename,"r");
        print 'opened'
    except IOError, e:
        print 'failed',e.message
    finally:
        f.close()
        print 'closed'

if __name__=='__main__':
    do_work("C:\code\misc.txt")   # there is no such file

I am getting an error and a warning

DeprecationWarning: BaseException.message has been deprecated as of
Python 2.6
  print 'failed',e.message

UnboundLocalError: local variable 'f' referenced before assignment

Is there a way to overcome the DeprecationWarning? I wanted to print
the error message from the IOError.How do I do this?
Also ,what should I do about the UnboundLocalError?

thanks and regards ,
mark