class_docstr: Raised when a defined column is not found in the dataframe
class_docstr_tok: ["Raised","when","a","defined","column","is","not","found","in","the","dataframe"]
code: def __init__(self, column_name, columns):
      message = "Column '{}' is not found in the dataframe: {}.".format(
          column_name, columns
      )
      Exception.__init__(self, message)
      self.message = message
  
label_desc: Use image node_id 1 to create a new ColumnNotFound object from inherited base classes: Exception with example: obj = ColumnNotFound(column_name, columns)