Module lemon.external.Cheetah.Utils.VerifyType

Functions to verify an argument's type

Meta-Data
================================================================================
Author: Mike Orr <iron@mso.oz.net>
License: This software is released for unlimited distribution under the
         terms of the Python license.
Version: $Revision: 1.1 $
Start Date: 2001/11/07
Last Revision Date: $Date: 2003/08/12 09:17:11 $

Verify the type of an argument.

arg, any, the argument.
argname, string, name of the argument.
legalTypes, list of type objects, the allowed types.
ltd, string, description of legal types (for error message).
errmsgExtra, string, text to append to error message.
Returns: None.
Exceptions: TypeError if 'arg' is the wrong type.

Same, but if it's a class, verify it's a subclass of the right class.

arg, any, the argument.
argname, string, name of the argument.
legalTypes, list of type objects, the allowed types.
ltd, string, description of legal types (for error message).
klass, class, the parent class.
errmsgExtra, string, text to append to the error message.
Returns: None.
Exceptions: TypeError if 'arg' is the wrong type.

Construct an error message.

argname, string, the argument name.
ltd, string, description of the legal types.
errmsgExtra, string, text to append to error mssage.
Returns: string, the error message.