Mercurial > cpython-lru_cache-weakref

diff Lib/UserString.py @ 34614:ac6dfc67c77f legacy-trunk

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Add support for negative indices in UserString.MutableString.__setitem__ and UserString.MutableString.__delitem__.
author Walter Dörwald <walter@livinglogic.de>
date Fri, 18 Feb 2005 13:22:43 +0000
parents b56481a90519
children 4eaab38566c9
line wrap: on
line diff
--- a/Lib/UserString.py	Fri Feb 18 11:54:46 2005 +0000
+++ b/Lib/UserString.py	Fri Feb 18 13:22:43 2005 +0000
@@ -146,9 +146,13 @@
     def __hash__(self):
         raise TypeError, "unhashable type (it is mutable)"
     def __setitem__(self, index, sub):
+        if index < 0:
+           index += len(self.data)
         if index < 0 or index >= len(self.data): raise IndexError
         self.data = self.data[:index] + sub + self.data[index+1:]
     def __delitem__(self, index):
+        if index < 0:
+           index += len(self.data)
         if index < 0 or index >= len(self.data): raise IndexError
         self.data = self.data[:index] + self.data[index+1:]
     def __setslice__(self, start, end, sub):