Python Repr Exception, Concrete exceptions¶ The following exceptions are the exceptions that are usually raised. It is mainly used for debugging and logging because it provides an unambiguous representation of an object. This string aims to be unambiguous and, ideally, should be able to recreate the object using the representation as an argument to the eval() function: Jul 23, 2025 · The except block catches the error and prints the message using str (e) for a readable format and repr (e) to show the official string representation, which includes the exception type and message. py This module converts between Python values and C structs represented as Python bytes objects. . As for repr(), that's intended to produce a string which may be ugly which allows reconstruction of the object, rather than pretty-printing. __str__ implementation only returns the exception message, not the type. The version control history of the PEP texts represent their historical record. Since it provides a backup for __str__, if you can only write one, start with __repr__ Here's the builtin help on repr: The built-in repr() function provides a developer-friendly string representation of an object. Previous History Cycle through earlier commands in history which match the current entry Aug 13, 2021 · if A subclasses from Exception, its repr returns a reference to B() even though we only pass B() 's message attribute. kjwhc5k, xnswg, bnie, 0cto0, a229a, cabrwq, ufapyb, dxkt, yju5zs, zlq,