Thanks A Lot for your tutorial.

To support TF 1.2
I think you need to update below line
"from tensorflow.contrib.rnn.python.ops.core_rnn_cell_impl import * "
To
"from tensorflow.contrib.rnn import *"

Also to use "embedding_attention_seq2seq" set include path or use:
tf.contrib.legacy_seq2seq.embedding_attention_seq2seq

Thanks Again for your tutorial.