def _uptime_syllable():
global __boottime<EOL>try:<EOL><INDENT>__boottime = os.stat('<STR_LIT>').st_mtime<EOL>return time.time() - __boottime<EOL><DEDENT>except (NameError, OSError):<EOL><INDENT>return None<EOL><DEDENT>
Returns uptime in seconds or None, on Syllable.