Seq2seq: Replace the embeddings with pre-trained word embeddings such as word2vec


I am following a seq2seq tutorial:

I want to use pre-trained vectors (Word2Vec) instead of word2index as we can see in the tutorial. I have edited the code to get the vector of the word rather than the index:

class Lang:
    def __init__(self, name): = name
        self.word2index = {}
        self.word2count = {}
        self.index2word = {0: "SOS", 1: "EOS"}
        self.n_words = 2  # Count SOS and EOS

    def get_word2vec(self):
        word2vec = KeyedVectors.load_word2vec_format('Models/Word2Vec/wiki.he.vec')
        return word2vec
    def addSentence(self, sentence):
        for word in sentence.split(' '):

    def addWord(self, word):
        if word not in self.word2index:
            self.word2index[word] = self.get_word2vec[word]
            self.word2count[word] = 1
            self.index2word[self.n_words] = word
            self.n_words += 1
            self.word2count[word] += 1

the dimension size of this word2vec is 300 dimensions

  1. Is this the right way to do that?
  2. May I need to change other things in my Encoder\decoder\ NN?

Thank you!