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Teach the compiler module about augmented assignment to tuple subscripts

This commit is contained in:
Nick Coghlan 2006-03-14 13:21:14 +00:00
parent 7580146b5c
commit cb35b95f86
1 changed files with 2 additions and 4 deletions
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6
Lib/compiler/pycodegen.py
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@ -1045,8 +1045,6 @@ class CodeGenerator:
self.emit('STORE_SLICE+%d' % slice)
def visitAugSubscript(self, node, mode):
if len(node.subs) > 1:
raise SyntaxError, "augmented assignment to tuple is not possible"
if mode == "load":
self.visitSubscript(node, 1)
elif mode == "store":
@ -1151,10 +1149,10 @@ class CodeGenerator:
self.visit(node.expr)
for sub in node.subs:
self.visit(sub)
if aug_flag:
self.emit('DUP_TOPX', 2)
if len(node.subs) > 1:
self.emit('BUILD_TUPLE', len(node.subs))
if aug_flag:
self.emit('DUP_TOPX', 2)
if node.flags == 'OP_APPLY':
self.emit('BINARY_SUBSCR')
elif node.flags == 'OP_ASSIGN':