Package import issue for simple tokenizer

[Seanyap90]

Hi I tried to run your book. There are issues with

• importing simple_tokenizer. No such module found when I run the import. When I last checked, the latest pytorch package has only tokenizer.py with the simple_tokenizer class
• Hence in cell 7 where there is a line text = tokenize([image_text], dalle.text_seq_len).cuda().
  This line is not applicable is there is no such function as tokenize.

Any way forward with this?