docs: def strip_br(s):
      r""" Strip the trailing html linebreak character (<BR />) from a string or sequence of strings
  
      A sequence of strings is assumed to be a row in a CSV/TSV file or words from a line of text
      so only the last element in a sequence is "stripped"
  
      >>> strip_br(' Title <BR> ')
      ' Title'
      >>> strip_br(list(range(1, 4)))
      [1, 2, 3]
      >>> strip_br((' Column 1<br />', ' Last Column < br / >  '))
      (' Column 1<br />', ' Last Column')
      >>> strip_br(['name', 'rank', 'serial\nnumber', 'date <BR />'])
      ['name', 'rank', 'serial\nnumber', 'date']
      >>> strip_br(None)
      >>> strip_br([])
      []
      >>> strip_br(())
      ()
      >>> strip_br(('one element<br>',))
      ('one element',)
      """
  
      if isinstance(s, basestring):
          return re.sub(r'\s*<\s*[Bb][Rr]\s*[/]?\s*>\s*$', '', s)
      elif isinstance(s, (tuple, list)):
          # strip just the last element in a list or tuple
          try:
              return type(s)(list(s)[:-1] + [strip_br(s[-1])])
          except (IndexError, ValueError, AttributeError, TypeError):  # len(s) == 0
              return s
      else:
          try:
              return type(s)(strip_br(str(s)))
          except (IndexError, ValueError, AttributeError, TypeError):  # s is None
              return s