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import serial
ser = serial.Serial('com3',baudrate=115200, bytesize=8,parity='N', stopbits=1,xonxoff=0, timeout=1)
while( True ):
    a = ser.read(100)
    print a
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A simple unix/linux daemon in Python
http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/
by Sander Marechal
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written a simple Python class for creating daemons on unix/linux
systems. It was pieced together for various other examples, mostly
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print('function')
foo()
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