Change the state_is_tuple default to True for the remaining 3 cells: …

…CoupledInputForgetGateLSTMCell, GridLSTMCell and AttentionCellWrapper.

Change: 152086191

tensorflow/contrib/rnn/python/kernel_tests/rnn_cell_test.py

@@ -66,7 +66,7 @@ def testCoupledInputForgetGateLSTMCell(self):
         x = array_ops.zeros([batch_size, input_size])
         m = array_ops.zeros([batch_size, state_size])
         output, state = rnn_cell.CoupledInputForgetGateLSTMCell(
-            num_units=num_units, forget_bias=1.0)(x, m)
+            num_units=num_units, forget_bias=1.0, state_is_tuple=False)(x, m)
         sess.run([variables.global_variables_initializer()])
         res = sess.run([output, state], {
             x.name:

tensorflow/contrib/rnn/python/ops/rnn_cell.py

@@ -109,7 +109,7 @@ class CoupledInputForgetGateLSTMCell(core_rnn_cell.RNNCell):
   def __init__(self, num_units, use_peepholes=False,
                initializer=None, num_proj=None, proj_clip=None,
                num_unit_shards=1, num_proj_shards=1,
-               forget_bias=1.0, state_is_tuple=False,
+               forget_bias=1.0, state_is_tuple=True,
                activation=math_ops.tanh, reuse=None):
     """Initialize the parameters for an LSTM cell.
 
@@ -457,7 +457,7 @@ def __init__(self, num_units, use_peepholes=False,
                start_freqindex_list=None,
                end_freqindex_list=None,
                couple_input_forget_gates=False,
-               state_is_tuple=False,
+               state_is_tuple=True,
                reuse=None):
     """Initialize the parameters for an LSTM cell.
 
@@ -1043,7 +1043,7 @@ class AttentionCellWrapper(core_rnn_cell.RNNCell):
   """
 
   def __init__(self, cell, attn_length, attn_size=None, attn_vec_size=None,
-               input_size=None, state_is_tuple=False, reuse=None):
+               input_size=None, state_is_tuple=True, reuse=None):
     """Create a cell with attention.
 
     Args: