parameters: (s, width)
return_statement: return s + ' '*n
docstring: ljust(s, width) -> string
  
      Return a left-justified version of s, in a field of the
      specified width, padded with spaces as needed.  The string is
      never truncated.
docstring_summary: ljust(s, width) -> string
docstring_tokens: ljust ( s width ) - > string
function: def ljust(s, width):
      """ljust(s, width) -> string
  
      Return a left-justified version of s, in a field of the
      specified width, padded with spaces as needed.  The string is
      never truncated.
  
      """
      n = width - len(s)
      if n <= 0: return s
      return s + ' '*n
function_tokens: def ljust ( s , width ) : n = width - len ( s ) if n <= 0 : return s return s + ' ' * n