Gracefully exit on writing config file.

Change: 152837817

1 files changed, 19 insertions, 16 deletions

diff --git a/tensorflow/contrib/keras/python/keras/backend.py b/tensorflow/contrib/keras/python/keras/backend.py
index d149138796..b35ee5db09 100644
--- a/tensorflow/contrib/keras/python/keras/backend.py
+++ b/tensorflow/contrib/keras/python/keras/backend.py
@@ -3627,21 +3627,24 @@ if os.path.exists(_config_path):
   set_image_data_format(_image_data_format)
 
 # Save config file.
-if os.access(_keras_base_dir, os.W_OK):
-  if not os.path.exists(_keras_dir):
-    try:
-      os.makedirs(_keras_dir)
-    except OSError:
-      # Except potential race conditions
-      # in multi-threaded environments.
-      pass
-
-  if not os.path.exists(_config_path):
-    _config = {
-        'floatx': floatx(),
-        'epsilon': epsilon(),
-        'backend': 'tensorflow',
-        'image_data_format': image_data_format()
-    }
+if not os.path.exists(_keras_dir):
+  try:
+    os.makedirs(_keras_dir)
+  except OSError:
+    # Except permission denied and potential race conditions
+    # in multi-threaded environments.
+    pass
+
+if not os.path.exists(_config_path):
+  _config = {
+      'floatx': floatx(),
+      'epsilon': epsilon(),
+      'backend': 'tensorflow',
+      'image_data_format': image_data_format()
+  }
+  try:
     with open(_config_path, 'w') as f:
       f.write(json.dumps(_config, indent=4))
+  except IOError:
+    # Except permission denied.
+    pass