code: def get_tag(note_store, my_tags):
          
          tag_id = []
          listtags = note_store.listTags()
          # cut the string by piece of tag with comma
          for my_tag in my_tags.split(','):
              for tag in listtags:
                  # remove space before and after
                  # thus we keep "foo bar"
                  # but not " foo bar" nor "foo bar "
                  if tag.name.lower() == my_tag.lower().lstrip().rstrip():
                      tag_id.append(tag.guid)
                      break
  
          return tag_id
docs: get the tags from his Evernote account
              :param note_store Evernote Instance
              :param my_tags string
              :return: array of the tag to create