commit 9479d1ade84d7a386a107989b699fb90b73cfa15
author Eli Bendersky <eliben@gmail.com> Fri Mar 04 05:34:58 2011 +0000
committer Eli Bendersky <eliben@gmail.com> Fri Mar 04 05:34:58 2011 +0000
tree 28f601ede8422262fdae0696a36790ceea3474f7
parent 1bc4f193d8419405e9b34f5e8dcbeb2ee5a15fc9

Issue #11388: Added a clear() method to MutableSequence

Lib/collections/abc.py

diff --git a/Lib/collections/abc.py b/Lib/collections/abc.py
index 6e908bd..c80c7dd 100644
--- a/Lib/collections/abc.py
+++ b/Lib/collections/abc.py
@@ -596,6 +596,13 @@
     def append(self, value):
         self.insert(len(self), value)
 
+    def clear(self):
+        try:
+            while True:
+                self.pop()
+        except IndexError:
+            pass
+
     def reverse(self):
         n = len(self)
         for i in range(n//2):