1"""
2Broken bytecode objects can easily crash the interpreter.
3
4This is not going to be fixed.  It is generally agreed that there is no
5point in writing a bytecode verifier and putting it in CPython just for
6this.  Moreover, a verifier is bound to accept only a subset of all safe
7bytecodes, so it could lead to unnecessary breakage.
8
9For security purposes, "restricted" interpreters are not going to let
10the user build or load random bytecodes anyway.  Otherwise, this is a
11"won't fix" case.
12
13"""
14
15import types
16
17co = types.CodeType(0, 0, 0, 0, 0, b'\x04\x71\x00\x00',
18                    (), (), (), '', '', 1, b'')
19exec(co)
20