Check two files are the same

Compare.py

# http://stackoverflow.com/questions/19120489/compare-two-files-report-difference-in-python
import difflib
import sys

with open('transect_2_night_1.bin_PB_2013-09-13_151717.dat', 'r') as hosts0:
    with open('transect_3_day_1.bin_PB_2013-09-13_150838.dat', 'r') as hosts1:
        diff = difflib.unified_diff(
            hosts0.readlines(),
            hosts1.readlines(),
            fromfile='hosts0',
            tofile='hosts1',
        )
        for line in diff:
            sys.stdout.write(line)