code: def rdtxt_gos(go_file, prt):
          
          goids_all = set()
          if not os.path.exists(go_file):
              raise RuntimeError("CAN NOT READ GO FILE: {FILE}\n".format(FILE=go_file))
          re_go = re.compile(r'(GO:\d{7})+?')
          re_com = re.compile(r'^\s*#')  # Lines starting with a '#' are comment lines and ignored
          with open(go_file) as ifstrm:
              for line in ifstrm:
                  # Skip lines that are comments
                  if re_com.search(line):
                      continue
                  # Search for GO IDs on the line
                  goids_found = re_go.findall(line)
                  if goids_found:
                      goids_all.update(goids_found)
              if prt:
                  prt.write("  {N} GO IDs READ: {TXT}\n".format(N=len(goids_all), TXT=go_file))
          return goids_all
docs: Read GO IDs from a file.