Bugs item #1156412, was opened at 2005-03-03 20:00 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1156412&group_id=5470
Category: Documentation Group: Python 2.5 Status: Open Resolution: None Priority: 5 Submitted By: Steven Bethard (bediviere) Assigned to: Nobody/Anonymous (nobody) Summary: add documentation for __new__ Initial Comment: 3.3.1 Basic customization does not document __new__. Proposed addition: __new__(cls[, ...]) Called to create a new instance of the class. __new__ is a staticmethod (special-cased so you need not declare it as such) that takes the class to be created as the first argument. The remaining arguments are those passed to the class constructor expression. The return value of __new__ should be the new object instance. Typical usage is to create a new instance of the class by invoking the superclass's __new__ method using "super(BaseClass, cls).__new__([...])" with appropriate arguments, modifying the returned instance if necessary, and then returning it. If the returned value is an instance of "cls" (the first argument to __new__), its __init__ will be invoked. Note that you need not return an instance of "cls", but if you don't, the new instance's __init__ method will not be invoked. The __new__ staticmethod is intended mainly to allow modification of immutable types like int, long, float, str and tuple. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1156412&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
