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-rw-r--r--Doc/library/dis.rst5
1 files changed, 3 insertions, 2 deletions
diff --git a/Doc/library/dis.rst b/Doc/library/dis.rst
index accc652a906..2217c3a8035 100644
--- a/Doc/library/dis.rst
+++ b/Doc/library/dis.rst
@@ -922,9 +922,10 @@ iterations of the loop.
.. opcode:: UNPACK_SEQUENCE (count)
Unpacks ``STACK[-1]`` into *count* individual values, which are put onto the stack
- right-to-left::
+ right-to-left. Require there to be exactly *count* values.::
- STACK.extend(STACK.pop()[:count:-1])
+ assert(len(STACK[-1]) == count)
+ STACK.extend(STACK.pop()[:-count-1:-1])
.. opcode:: UNPACK_EX (counts)