In Python 3.11b0, dis.dis() and dis.get_instructions() will show the "wrong" operand values for instructions prefixed by EXTENDED_ARG_QUICK.

The bug is that this line only checks for EXTENDED_ARG instructions. It should check for instructions that deoptimize to EXTENDED_ARG (i.e. deop == EXTENDED_ARG).

To reproduce the issue, consider this snippet adapted from cloudpickle:

import random import textwrap import dis nvars = 65537 + 258 names = ['g%d' % i for i in range(1, nvars)] r = random.Random(42) d = {name: r.randrange(100) for name in names} # def f(x): # x = g1, g2, ... code = """ def f():  x = {tup} """.format(tup=', '.join(names)) exec(textwrap.dedent(code), d, d) f = d['f'] dis.dis(f)