7.5. BirdNoteSet._fileTime(): Update the
most recent modification time
birdnotes.py
# - - - B i r d N o t e S e t . _ f i l e T i m e
def _fileTime(self, fileName):
"""Update self._newestTime
[ fileName is a string ->
if fileName does not exist ->
raise IOError
else if (self.newestTime is None) or
(self.newestTime < modification time of fileName) ->
self.newestTime := modification time of fileName
else -> I ]
"""
#-- 1 --
# [ if fileName names a file that does not exist or is
# unreadable ->
# raise IOError
# else ->
# modTime := modification timestamp of that file ]
if os.path.exists(fileName):
status = os.stat(fileName)
modTime = status[stat.ST_MTIME]
else:
raise IOError("No such file: '%s'" % fileName)
#-- 2 --
if ((self.newestTime is None) or
(self.newestTime < modTime)):
self.newestTime = modTime
