import logging, gensim, bz2
logging.basicConfig(format='%(asctime)s : %(levelname)s : %(message)s', level=logging.INFO)

# load id->word mapping (the dictionary), one of the results of step 2 above
id2word = gensim.corpora.Dictionary.load_from_text('wiki_en_wordids.txt')
# load corpus iterator
mm = gensim.corpora.MmCorpus('wiki_en_tfidf.mm')
# mm = gensim.corpora.MmCorpus(bz2.BZ2File('wiki_en_tfidf.mm.bz2')) # use
#this if you compressed the TFIDF output (recommended)

print(mm)

45549   aa  18622
76459   aaa 9951
90499   aaaa    953
90492   aaas    901
76461   aab 1101
76460   aac 1817
[...]