Update hdf5_getters.py to use new 'tables' api.

Add descriptive error when failing to download song.

mel-spec/code/lib/hdf5_getters.py

@@ -1,28 +1,20 @@
 """
 Thierry Bertin-Mahieux (2010) Columbia University
 tb2332@columbia.edu
-
-
 This code contains a set of getters functions to access the fields
 from an HDF5 song file (regular file with one song or
 aggregate / summary file with many songs)
-
 This is part of the Million Song Dataset project from
 LabROSA (Columbia University) and The Echo Nest.
-
-
 Copyright 2010, Thierry Bertin-Mahieux
-
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
-
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
-
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
@@ -36,7 +28,7 @@ def open_h5_file_read(h5filename):
     Open an existing H5 in read mode.
     Same function as in hdf5_utils, here so we avoid one import
     """
-    return tables.openFile(h5filename, mode='r')
+    return tables.open_file(h5filename, mode='r')
 
 
 def get_num_songs(h5):
@@ -292,7 +284,7 @@ def get_segments_start(h5,songidx=0):
         return h5.root.analysis.segments_start[h5.root.analysis.songs.cols.idx_segments_start[songidx]:]
     return h5.root.analysis.segments_start[h5.root.analysis.songs.cols.idx_segments_start[songidx]:
                                            h5.root.analysis.songs.cols.idx_segments_start[songidx+1]]
-    
+
 def get_segments_confidence(h5,songidx=0):
     """
     Get segments confidence array. Takes care of the proper indexing if we are in aggregate
@@ -473,4 +465,4 @@ def get_year(h5,songidx=0):
     """
     Get release year from a HDF5 song file, by default the first song in it
     """
-    return h5.root.musicbrainz.songs.cols.year[songidx]
+    return h5.root.musicbrainz.songs.cols.year[songidx]

mel-spec/code/lib/previewDownloader.py

@@ -48,8 +48,8 @@ def update_progress(progress):
 
                                 url = py7D.preview_url(id7Digital)
                                 urlretrieve = urllib.urlretrieve(url, previewFilePath)
-                            except Exception:
-                                print "Error accured"
+                            except Exception as e:
+                                print "Error accured: " + str(e)
 
                         if file.endswith('h5'):
                             # update_progress(int(i/7620 * 100))