(self, cmd)
nullvalue STRING: Print STRING in place of null values

        This affects textual output modes like column and list and
        sets how SQL null values are shown.  The default is a zero
        length string.  Insert mode and dumps are not affected by this
        setting.  You can use double quotes to supply a zero length
        string.  For example:

          .nullvalue ""         # the default
          .nullvalue <NULL>     # rather obvious
          .nullvalue " \\t "     # A tab surrounded by spaces
nullvalue STRING: Print STRING in place of null values
nullvalue STRING : Print STRING in place of null values
def command_nullvalue(self, cmd):
        """nullvalue STRING: Print STRING in place of null values

        This affects textual output modes like column and list and
        sets how SQL null values are shown.  The default is a zero
        length string.  Insert mode and dumps are not affected by this
        setting.  You can use double quotes to supply a zero length
        string.  For example:

          .nullvalue ""         # the default
          .nullvalue <NULL>     # rather obvious
          .nullvalue " \\t "     # A tab surrounded by spaces
        """
        if len(cmd) != 1:
            raise self.Error("nullvalue takes exactly one parameter")
        self.nullvalue = self.fixup_backslashes(cmd[0])
def command_nullvalue ( self , cmd ) : if len ( cmd ) != 1 : raise self . Error ( "nullvalue takes exactly one parameter" ) self . nullvalue = self . fixup_backslashes ( cmd [ 0 ] )