code: def renumber_atoms(lines):
      '''
      Takes in a list of PDB lines and renumbers the atoms appropriately
      '''
      new_lines = []
      current_number = 1
      for line in lines:
          if line.startswith('ATOM') or line.startswith('HETATM'):
              new_lines.append(
                  line[:6] + string.rjust('%d' % current_number, 5) + line[11:]
              )
              current_number += 1
          else:
              if line.startswith('TER'):
                  current_number += 1
              new_lines.append(line)
      return new_linef renumber_atoms(lines):
      '''
      Takes in a list of PDB lines and renumbers the atoms appropriately
      '''
      new_lines = []
      current_number = 1
      for line in lines:
          if line.startswith('ATOM') or line.startswith('HETATM'):
              new_lines.append(
                  line[:6] + string.rjust('%d' % current_number, 5) + line[11:]
              )
              current_number += 1
          else:
              if line.startswith('TER'):
                  current_number += 1
              new_lines.append(line)
      return new_lines
docs: Takes in a list of PDB lines and renumbers the atoms appropriately