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public python v1 · immutableimport sys,osclass IHOut(file): def __init__(s,fd=sys.stdout.fileno()): s.fd = fd def write(s, str): os.write(fd,'|') os.write(fd,str)sys.stdout = IHOut()print "This is a test."import sys,osclass IHOut(file): def __init__(s,fd=sys.stdout.fileno()): s.fd = fd def write(s, str): os.write(fd,'|') os.write(fd,str)sys.stdout = IHOut()print "This is a test."