Issue 25483: Add an opcode to make f-string formatting more robust.
diff --git a/Lib/importlib/_bootstrap_external.py b/Lib/importlib/_bootstrap_external.py
index e0a1200..c58a62a 100644
--- a/Lib/importlib/_bootstrap_external.py
+++ b/Lib/importlib/_bootstrap_external.py
@@ -223,12 +223,13 @@
# Python 3.5b1 3330 (PEP 448: Additional Unpacking Generalizations)
# Python 3.5b2 3340 (fix dictionary display evaluation order #11205)
# Python 3.5b2 3350 (add GET_YIELD_FROM_ITER opcode #24400)
+# Python 3.6a0 3360 (add FORMAT_VALUE opcode #25483)
#
# MAGIC must change whenever the bytecode emitted by the compiler may no
# longer be understood by older implementations of the eval loop (usually
# due to the addition of new opcodes).
-MAGIC_NUMBER = (3350).to_bytes(2, 'little') + b'\r\n'
+MAGIC_NUMBER = (3360).to_bytes(2, 'little') + b'\r\n'
_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c
_PYCACHE = '__pycache__'
diff --git a/Lib/opcode.py b/Lib/opcode.py
index 4c826a7..71ce672 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -214,4 +214,6 @@
def_op('BUILD_TUPLE_UNPACK', 152)
def_op('BUILD_SET_UNPACK', 153)
+def_op('FORMAT_VALUE', 155)
+
del def_op, name_op, jrel_op, jabs_op