def _save(self):
try:
audio = _Asf(self.uri)
tags = audio.tags
except (IOError, AsfError):
return False
try:
for tag in self._deleted_tags:
try:
del audio[tag]
except KeyError:
pass
self._deleted_tags.clear()
except AttributeError:
pass
for identifier in self.keys_tags():
try:
values = self.get(identifier)
if not values:
raise KeyError
except KeyError:
continue
try:
tag = self.__literal_to_tag[identifier]
except KeyError:
tag = identifier
tags[tag] = values
audio.save()
return True
def _read_tags(self):
try:
audio = _Asf(self.uri)
except AsfError:
raise TagParseError
for key, values in (audio.tags or {}).iteritems():
try:
values = map(unicode, values)
self[self.__tag_to_literal[key]] = values
except UnicodeDecodeError:
pass
except KeyError:
self[key] = values
self._parse_info(audio.info)
self[FORMAT] = "WMA"
self[ENCODING] = "lossy"
