import sys 
class PrintRedirect: 
    def __init__(self, filename):
        self.filename = filename
    def write(self, msg):
        f = file(self.filename, 'a')
        f.write(msg)
        f.close()
sys.stdout = PrintRedirect('tmp.log')
print 'Log message #1'
print 'Log message #2'
print 'Log message #3'