def __init__(self, fileName,ident=None):
# check if the file is remote, if so, download it to a temporary file and reset fileName
self._isRemote = _getIsRemote(fileName)
if self._isRemote:
fileName, self._format = _getRemoteFile(fileName)
else:
self._format = _getFormat(fileName)
if self._format != 'jpg':
raise IllegalFormat(fileName, 'JPG')
ImageReader.__init__(self, fileName, ident)
