def DeleteBlob(self, blob_key):
    """Delete blob data from disk.

    Deleting an unknown blob will not raise an error.

    Args:
      blob_key: Blob-key of existing blob to delete.
    """
    try:
      os.remove(self._FileForBlob(blob_key))
    except __HOLE__, e:
      if e.errno != errno.ENOENT:
        raise e
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/blobstore/file_blob_storage.py/FileBlobStorage.DeleteBlob