def normalize(self):
     with tables.open_file(self.counts_file_path, mode = "r+") as counts_file:
         nps.normalize_regions(counts_file.root.region_counts, counts_file.root.files)
 def normalize(self):
     with tables.open_file(self.counts_file_path, mode="r+") as counts_file:
         nps.normalize_regions(counts_file.root.region_counts,
                               counts_file.root.files)