Refactor of an4 downloader

data/an4.py

@@ -2,8 +2,8 @@
 import os
 import io
 import shutil
-
-import subprocess
+import tarfile
+import wget
 
 from utils import create_manifest
 
@@ -65,16 +65,17 @@ def _process_transcript(transcripts, x):
 def main():
  root_path = 'an4/'
  name = 'an4'
- subprocess.call(['wget http:https://www.speech.cs.cmu.edu/databases/an4/an4_raw.bigendian.tar.gz'], shell=True)
- subprocess.call(['tar -xzvf an4_raw.bigendian.tar.gz'], stdout=open(os.devnull, 'wb'), shell=True)
+ wget.download('http:https://www.speech.cs.cmu.edu/databases/an4/an4_raw.bigendian.tar.gz')
+ tar = tarfile.open('an4_raw.bigendian.tar.gz')
+ tar.extractall()
  os.makedirs(args.target_dir)
  _format_data(root_path, 'train', name, 'an4_clstk')
  _format_data(root_path, 'test', name, 'an4test_clstk')
  shutil.rmtree(root_path)
  os.remove('an4_raw.bigendian.tar.gz')
  train_path = args.target_dir + '/train/'
  test_path = args.target_dir + '/test/'
- print ('Creating manifests...')
+ print ('\n', 'Creating manifests...')
  create_manifest(train_path, 'an4_train')
  create_manifest(test_path, 'an4_val')