import os
f = os.popen('/usr/bin/hexdump /dev/input/mice', 'rb', 1)
data  = f.read(512)
while(data):
        print data,
        data  =  f.read(512)

#!/usr/bin/python
f = file("/dev/input/mice")
l, r = 0, 0
while 1:
        buttons = ord(f.read(3)[0])
        nl, nr = buttons&1, buttons&2
        if l and not nl:
                print "left release"
        if r and not nr:
                print "right release"
        l, r = nl, nr