TypeError: The numpy boolean negative, the `-` operator, is not supported, use the `~`

• error
  • Traceback (most recent call last):
      File "C:/Users/Administrator/Desktop/pc/2018031800/jiaoyou2.py", line 8, in <module>
        print source
      File "D:\python2.7\lib\site-packages\pandas\core\base.py", line 35, in __str__
        return self.__bytes__()
      File "D:\python2.7\lib\site-packages\pandas\core\base.py", line 47, in __bytes__
        return self.__unicode__().encode(encoding, 'replace')
      File "D:\python2.7\lib\site-packages\pandas\core\frame.py", line 460, in __unicode__
        line_width=width, show_dimensions=show_dimensions)
      File "D:\python2.7\lib\site-packages\pandas\core\frame.py", line 1299, in to_string
        formatter.to_string()
      File "D:\python2.7\lib\site-packages\pandas\core\format.py", line 380, in to_string
        strcols = self._to_str_columns()
      File "D:\python2.7\lib\site-packages\pandas\core\format.py", line 329, in _to_str_columns
        fmt_values = self._format_col(i)
      File "D:\python2.7\lib\site-packages\pandas\core\format.py", line 501, in _format_col
        space=self.col_space
      File "D:\python2.7\lib\site-packages\pandas\core\format.py", line 1626, in format_array
        return fmt_obj.get_result()
      File "D:\python2.7\lib\site-packages\pandas\core\format.py", line 1642, in get_result
        fmt_values = self._format_strings()
      File "D:\python2.7\lib\site-packages\pandas\core\format.py",line 1670, in _format_strings
        is_float = lib.map_infer(vals, com.is_float) & notnull(vals)
      File "D:\python2.7\lib\site-packages\pandas\core\common.py", line 276, in notnull
        return -res
    TypeError: The numpy boolean negative, the `-` operator, is not supported, use the `~` operator or the logical_not function instead.
• Solution:
  •   File "D:\python2.7\lib\site-packages\pandas\core\common.py", line 276, in notnull
        return -res
  • common.py Enter this file and change "return -res" to "return ~res"