#!/usr/bin/python2.7
import os
import tempfile
tmpdir = tempfile.mkdtemp()
one = os.path.join(tmpdir,'one')
target1 = os.path.join(tmpdir,'target1')
target2 = os.path.join(tmpdir,'target2')
target3 = os.path.join(tmpdir,'target3')
f = open(one,'w')
f.close()
f = open(target1,'w')
f.close
f = open(target2, 'w')
f.close
f = open(target3, 'w')
f.close
timeone = (os.stat(one).st_atime, os.stat(one).st_mtime)
os.utime(target1, timeone)
timetargetone = (os.stat(target1).st_atime, os.stat(target1).st_mtime)
os.utime(target2, timetargetone)
timetargettwo = (os.stat(target2).st_atime, os.stat(target2).st_mtime)
os.utime(target3, timetargettwo)
timetargetthree = (os.stat(target3).st_atime, os.stat(target3).st_mtime)

print timeone, timetargetone, timetargettwo, timetargetthree
print '(%20.10f %20.10f)' % timeone, '(%20.10f %20.10f)' % timetargetone, '(%20.10f %20.10f)' %  timetargettwo, '(%20.10f %20.10f)' % timetargetthree
print os.popen('ls -l --full-time %s' % tmpdir).read() 
assert timetargetthree == timetargettwo
assert timetargettwo == timetargetone
assert timetargetone == timeone