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I am trying to see how many times some of the installed applications are being used on a system.

I used in my python script 

fileaccesstime=os.path.getatime(os.sep.join([dirpath, filename]))

Some of the applications dont seem to update atime even when accessed. For example, I used python and saw that atime did not change.

From Get last access time of the file? it appears that atime might not get updated because it would call mmap.

Does that mean I can never find the last access time. I am unsure how to proceed to find out the last access for some applications eg. python

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user1719051
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    An application does not update atime, the OS does (or doesn't). For example, a Unix file system mounted with `noatime` option will never update atime. This is often done because updating atime actually converts a read operation to a write operation. So atime is generally not reliable unless you have the opportunity to change the mount options. – uselpa May 19 '14 at 20:47

1 Answers1

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You should check this way:

import os, time
print time.ctime(os.stat('my_path/test.txt').st_atime)

OR

(mode, ino, dev, nlink, uid, gid, size, atime, mtime, ctime) = os.stat(file)
print "Last Access: %s" % time.ctime(atime)

I recommend you to check official info at os.stat() documentation:

To check creation&modification dates

print "Modification Date: %s" % time.ctime(os.path.getmtime(file))
print "Creation Date: %s" % time.ctime(os.path.getctime(file))

OR

(mode, ino, dev, nlink, uid, gid, size, atime, mtime, ctime) = os.stat(file)
print "Modification Date: %s" % time.ctime(mtime)
print "Creation Date: %s" % time.ctime(ctime)
AlvaroAV
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