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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_last_modified_timestamp(self):
 """ Looks at the files in a git root directory and grabs the last modified timestamp """

        cmd = "find . -print0 | xargs -0 stat -f '%T@ %p' | sort -n | tail -1 | cut -f2- -d' '"
        ps = subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE,stderr=subprocess.STDOUT)
        output = ps.communicate()[0]
        print output