Import/update script exits when it encounters an invalid file

[jmathai]

The import/update script recursively gets a listing of files and checks the extension against a list of supported extensions. If a file has a supported extension but does not contain valid data (i.e. is not a picture or movie) then the script exits.

Traceback (most recent call last):
  File "<string>", line 150, in <module>
  File "<string>", line 44, in _import
  File "/......../filesystem.py", line 137, in process_file
  File "/......../media.py", line 243, in get_metadata
  File "/......../media.py", line 143, in get_date_taken
  File "/......../media.py", line 175, in get_exif
  File "/usr/local/Cellar/pyexiv2/0.3.2_1/lib/python2.7/site-packages/pyexiv2/metadata.py", line 107, in read
    self.__image = self._instantiate_image(self.filename)
  File "/usr/local/Cellar/pyexiv2/0.3.2_1/lib/python2.7/site-packages/pyexiv2/metadata.py", line 79, in _instantiate_image
    return libexiv2python._Image(filename)
IOError: /......../Photos/._2012-04-21 17.59.46.jpg: The file contains data of an unknown image type
elodie returned -1