This example changes the value of the POSIX atime attribute for the wind.jpg object. If the namespace is configured to synchronize atime values with retention settings and the object has a retention setting that specifies a date or time in the future, this also changes the retention setting for the object.
Unix command
touch -a -t 201505171200 /datamount/images/wind.jpg
Python code
import os
mTime = os.path.getmtime("/datamount/images/wind.jpg")
aTime = 1431878400 #12:00 May 17th 2015
os.utime("/datamount/images/wind.jpg", (aTime, mTime))