Switch from deprecated tfv1.app to absl-py

DeepSpeech.py

@@ -8,6 +8,7 @@ import sys
 LOG_LEVEL_INDEX = sys.argv.index('--log_level') + 1 if '--log_level' in sys.argv else 0
 os.environ['TF_CPP_MIN_LOG_LEVEL'] = sys.argv[LOG_LEVEL_INDEX] if 0 < LOG_LEVEL_INDEX < len(sys.argv) else '3'
 
+import absl.app
 import numpy as np
 import progressbar
 import shutil
@@ -891,4 +892,4 @@ def main(_):
 
 if __name__ == '__main__':
     create_flags()
-    tfv1.app.run(main)
+    absl.app.run(main)

evaluate.py

@@ -7,6 +7,7 @@ import json
 
 from multiprocessing import cpu_count
 
+import absl.app
 import numpy as np
 import progressbar
 import tensorflow as tf
@@ -167,5 +168,4 @@ def main(_):
 
 if __name__ == '__main__':
     create_flags()
-    tf.app.flags.DEFINE_string('test_output_file', '', 'path to a file to save all src/decoded/distance/loss tuples')
-    tfv1.app.run(main)
+    absl.app.run(main)

requirements.txt

@@ -6,6 +6,7 @@ pandas
 six
 pyxdg
 attrdict
+absl-py
 
 # Requirements for building native_client files
 setuptools

util/flags.py

@@ -1,16 +1,15 @@
 from __future__ import absolute_import, division, print_function
 
-import tensorflow as tf
-
 import os
+import absl.flags
 
-FLAGS = tf.app.flags.FLAGS
+FLAGS = absl.flags.FLAGS
 
 def create_flags():
     # Importer
     # ========
 
-    f = tf.app.flags
+    f = absl.flags
 
     f.DEFINE_string('train_files', '', 'comma separated list of files specifying the dataset used for training. Multiple files will get merged. If empty, training will not be run.')
     f.DEFINE_string('dev_files', '', 'comma separated list of files specifying the dataset used for validation. Multiple files will get merged. If empty, validation will not be run.')
@@ -89,6 +88,8 @@ def create_flags():
 
     f.DEFINE_string('summary_dir', '', 'target directory for TensorBoard summaries - defaults to directory "deepspeech/summaries" within user\'s data home specified by the XDG Base Directory Specification')
 
+    f.DEFINE_string('test_output_file', '', 'path to a file to save all src/decoded/distance/loss tuples generated during a test epoch')
+
     # Geometry
 
     f.DEFINE_integer('n_hidden', 2048, 'layer width to use when initialising layers')