code: def list_all_python_programs(self):
          
          self.tot_lines = 0
          self.tot_bytes = 0
          self.tot_files = 0
          self.tot_loc = 0
          self.lstPrograms = []
          fl = mod_fl.FileList([self.fldr], ['*.py'], ["__pycache__", "/venv/", "/venv2/", ".git"])
          for fip in fl.get_list():
              if '__init__.py' not in fip:
                  self.add(fip, 'TODO - add comment')
                  f = mod_file.TextFile(fip)
                  self.tot_lines += f.count_lines_in_file()
                  self.tot_loc += f.count_lines_of_code()
                  self.tot_bytes += f.size
                  self.tot_files += 1
   
          print('All Python Program Statistics')
          print('Files = ', self.tot_files, ' Bytes = ', self.tot_bytes, ' Lines = ', self.tot_lines, ' Lines of Code = ', self.tot_loc)
docs: collects a filelist of all .py programs