From b8b6d3ef40a355cb7e6256d3e3eb4edd904b05c9 Mon Sep 17 00:00:00 2001 From: Raymond Hettinger Date: Wed, 6 Feb 2008 20:59:41 +0000 Subject: Let the world know that UserList is a MutableSequence. --- Lib/UserList.py | 6 +++++- Lib/UserString.py | 9 +++++++-- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/Lib/UserList.py b/Lib/UserList.py index 116122f..348ea76 100644 --- a/Lib/UserList.py +++ b/Lib/UserList.py @@ -1,6 +1,8 @@ """A more or less complete user-defined wrapper around list objects.""" -class UserList: +import collections + +class UserList(collections.MutableSequence): def __init__(self, initlist=None): self.data = [] if initlist is not None: @@ -69,3 +71,5 @@ class UserList: self.data.extend(other.data) else: self.data.extend(other) + +collections.MutableSequence.register(UserList) diff --git a/Lib/UserString.py b/Lib/UserString.py index a8b805f..615c135 100755 --- a/Lib/UserString.py +++ b/Lib/UserString.py @@ -6,10 +6,11 @@ Note: string objects have grown methods in Python 1.6 This module requires Python 1.6 or later. """ import sys +import collections __all__ = ["UserString","MutableString"] -class UserString: +class UserString(collections.Sequence): def __init__(self, seq): if isinstance(seq, str): self.data = seq @@ -161,7 +162,9 @@ class UserString: def upper(self): return self.__class__(self.data.upper()) def zfill(self, width): return self.__class__(self.data.zfill(width)) -class MutableString(UserString): +collections.Sequence.register(UserString) + +class MutableString(UserString, collections.MutableSequence): """mutable string objects Python strings are immutable objects. This has the advantage, that @@ -230,6 +233,8 @@ class MutableString(UserString): self.data *= n return self +collections.MutableSequence.register(MutableString) + if __name__ == "__main__": # execute the regression test to stdout, if called as a script: import os -- cgit v0.12