FM / python3.12

/usr/lib64/python3.12

Name	Size	Mode	Actions
asyncio/	-	0755	rm
collections/	-	0755	rm
concurrent/	-	0755	rm
config-3.12-x86_64-linux-gnu/	-	0755	rm
ctypes/	-	0755	rm
curses/	-	0755	rm
dbm/	-	0755	rm
email/	-	0755	rm
encodings/	-	0755	rm
ensurepip/	-	0755	rm
html/	-	0755	rm
http/	-	0755	rm
importlib/	-	0755	rm
json/	-	0755	rm
lib-dynload/	-	0755	rm
lib2to3/	-	0755	rm
logging/	-	0755	rm
multiprocessing/	-	0755	rm
pydoc_data/	-	0755	rm
re/	-	0755	rm
site-packages/	-	0755	rm
sqlite3/	-	0755	rm
tomllib/	-	0755	rm
unittest/	-	0755	rm
urllib/	-	0755	rm
venv/	-	0755	rm
wsgiref/	-	0755	rm
xml/	-	0755	rm
xmlrpc/	-	0755	rm
zipfile/	-	0755	rm
zoneinfo/	-	0755	rm
__pycache__/	-	0755	rm
abc.py	6538	0644	edit dl rm
aifc.py	34211	0644	edit dl rm
antigravity.py	500	0644	edit dl rm
argparse.py	101155	0644	edit dl rm
ast.py	64452	0644	edit dl rm
base64.py	20634	0755	edit dl rm
bdb.py	33573	0644	edit dl rm
bisect.py	3423	0644	edit dl rm
bz2.py	11847	0644	edit dl rm
calendar.py	25864	0644	edit dl rm
cgi.py	34418	0755	edit dl rm
cgitb.py	12421	0644	edit dl rm
chunk.py	5500	0644	edit dl rm
cmd.py	14873	0644	edit dl rm
code.py	10962	0644	edit dl rm
codecs.py	36870	0644	edit dl rm
codeop.py	5908	0644	edit dl rm
colorsys.py	4062	0644	edit dl rm
compileall.py	20507	0644	edit dl rm
configparser.py	54205	0644	edit dl rm
contextlib.py	27637	0644	edit dl rm
contextvars.py	129	0644	edit dl rm
copy.py	8412	0644	edit dl rm
copyreg.py	7614	0644	edit dl rm
cProfile.py	6555	0755	edit dl rm
crypt.py	3913	0644	edit dl rm
csv.py	17132	0644	edit dl rm
dataclasses.py	62085	0644	edit dl rm
datetime.py	268	0644	edit dl rm
decimal.py	2805	0644	edit dl rm
difflib.py	83368	0644	edit dl rm
dis.py	30227	0644	edit dl rm
doctest.py	106749	0644	edit dl rm
enum.py	81540	0644	edit dl rm
filecmp.py	10381	0644	edit dl rm
fileinput.py	15714	0644	edit dl rm
fnmatch.py	5999	0644	edit dl rm
fractions.py	38147	0644	edit dl rm
ftplib.py	35240	0644	edit dl rm
functools.py	37940	0644	edit dl rm
genericpath.py	5572	0644	edit dl rm
getopt.py	7488	0644	edit dl rm
getpass.py	5990	0644	edit dl rm
gettext.py	21320	0644	edit dl rm
glob.py	8732	0644	edit dl rm
graphlib.py	9648	0644	edit dl rm
gzip.py	25402	0644	edit dl rm
hashlib.py	9683	0644	edit dl rm
heapq.py	23024	0644	edit dl rm
hmac.py	8043	0644	edit dl rm
imaplib.py	54209	0644	edit dl rm
imghdr.py	4398	0644	edit dl rm
inspect.py	127125	0644	edit dl rm
io.py	3582	0644	edit dl rm
ipaddress.py	81414	0644	edit dl rm
keyword.py	1073	0644	edit dl rm
LICENSE.txt	13936	0644	edit dl rm
linecache.py	5800	0644	edit dl rm
locale.py	78599	0644	edit dl rm
lzma.py	13277	0644	edit dl rm
mailbox.py	78911	0644	edit dl rm
mailcap.py	9333	0644	edit dl rm
mimetypes.py	23037	0644	edit dl rm
modulefinder.py	23699	0644	edit dl rm
netrc.py	6922	0644	edit dl rm
nntplib.py	41087	0644	edit dl rm
ntpath.py	30404	0644	edit dl rm
nturl2path.py	2374	0644	edit dl rm
numbers.py	11467	0644	edit dl rm
opcode.py	13174	0644	edit dl rm
operator.py	10965	0644	edit dl rm
optparse.py	60369	0644	edit dl rm
os.py	40821	0644	edit dl rm
pathlib.py	51052	0644	edit dl rm
pdb.py	70297	0755	edit dl rm
pickle.py	66911	0644	edit dl rm
pickletools.py	94052	0644	edit dl rm
pipes.py	8978	0644	edit dl rm
pkgutil.py	18281	0644	edit dl rm
platform.py	43388	0755	edit dl rm
plistlib.py	28582	0644	edit dl rm
poplib.py	14742	0644	edit dl rm
posixpath.py	17356	0644	edit dl rm
pprint.py	24158	0644	edit dl rm
profile.py	23092	0755	edit dl rm
pstats.py	29289	0644	edit dl rm
pty.py	6137	0644	edit dl rm
pyclbr.py	11396	0644	edit dl rm
pydoc.py	113508	0755	edit dl rm
py_compile.py	7837	0644	edit dl rm
queue.py	11496	0644	edit dl rm
quopri.py	7183	0755	edit dl rm
random.py	34689	0644	edit dl rm
reprlib.py	7148	0644	edit dl rm
rlcompleter.py	7827	0644	edit dl rm
runpy.py	12885	0644	edit dl rm
sched.py	6351	0644	edit dl rm
secrets.py	1984	0644	edit dl rm
selectors.py	19671	0644	edit dl rm
shelve.py	8560	0644	edit dl rm
shlex.py	13353	0644	edit dl rm
shutil.py	56198	0644	edit dl rm
signal.py	2495	0644	edit dl rm
site.py	23439	0644	edit dl rm
smtplib.py	43531	0755	edit dl rm
sndhdr.py	7448	0644	edit dl rm
socket.py	37815	0644	edit dl rm
socketserver.py	28065	0644	edit dl rm
sre_compile.py	231	0644	edit dl rm
sre_constants.py	232	0644	edit dl rm
sre_parse.py	229	0644	edit dl rm
ssl.py	50904	0644	edit dl rm
stat.py	5485	0644	edit dl rm
statistics.py	50227	0644	edit dl rm
string.py	11786	0644	edit dl rm
stringprep.py	12917	0644	edit dl rm
struct.py	257	0644	edit dl rm
subprocess.py	88747	0644	edit dl rm
sunau.py	18478	0644	edit dl rm
symtable.py	12477	0644	edit dl rm
sysconfig.py	33773	0644	edit dl rm
tabnanny.py	11531	0755	edit dl rm
tarfile.py	115805	0755	edit dl rm
telnetlib.py	23334	0644	edit dl rm
tempfile.py	32386	0644	edit dl rm
textwrap.py	19718	0644	edit dl rm
this.py	1003	0644	edit dl rm
threading.py	59742	0644	edit dl rm
timeit.py	13463	0755	edit dl rm
token.py	2511	0644	edit dl rm
tokenize.py	21570	0644	edit dl rm
trace.py	29352	0755	edit dl rm
traceback.py	46393	0644	edit dl rm
tracemalloc.py	18047	0644	edit dl rm
tty.py	2035	0644	edit dl rm
types.py	10993	0644	edit dl rm
typing.py	118836	0644	edit dl rm
uu.py	7341	0644	edit dl rm
uuid.py	29656	0644	edit dl rm
warnings.py	21909	0644	edit dl rm
wave.py	22769	0644	edit dl rm
weakref.py	21513	0644	edit dl rm
webbrowser.py	24206	0755	edit dl rm
xdrlib.py	5942	0644	edit dl rm
zipapp.py	7543	0644	edit dl rm
zipimport.py	27840	0644	edit dl rm
_aix_support.py	4021	0644	edit dl rm
_collections_abc.py	32089	0644	edit dl rm
_compat_pickle.py	8761	0644	edit dl rm
_compression.py	5681	0644	edit dl rm
_markupbase.py	14653	0644	edit dl rm
_osx_support.py	22023	0644	edit dl rm
_pydatetime.py	92087	0644	edit dl rm
_pydecimal.py	227283	0644	edit dl rm
_pyio.py	93593	0644	edit dl rm
_pylong.py	10790	0644	edit dl rm
_py_abc.py	6189	0644	edit dl rm
_sitebuiltins.py	3128	0644	edit dl rm
_strptime.py	28393	0644	edit dl rm
_sysconfigdata__linux_x86_64-linux-gnu.py	72132	0644	edit dl rm
_threading_local.py	7220	0644	edit dl rm
_weakrefset.py	5893	0644	edit dl rm
__future__.py	5218	0644	edit dl rm
__hello__.py	227	0644	edit dl rm

Edit: /usr/lib64/python3.12/dis.py (30227B)

"""Disassembler of Python byte code into mnemonics."""

import sys
import types
import collections
import io

from opcode import *
from opcode import (
    __all__ as _opcodes_all,
    _cache_format,
    _inline_cache_entries,
    _nb_ops,
    _intrinsic_1_descs,
    _intrinsic_2_descs,
    _specializations,
    _specialized_instructions,
)

__all__ = ["code_info", "dis", "disassemble", "distb", "disco",
           "findlinestarts", "findlabels", "show_code",
           "get_instructions", "Instruction", "Bytecode"] + _opcodes_all
del _opcodes_all

_have_code = (types.MethodType, types.FunctionType, types.CodeType,
              classmethod, staticmethod, type)

FORMAT_VALUE = opmap['FORMAT_VALUE']
FORMAT_VALUE_CONVERTERS = (
    (None, ''),
    (str, 'str'),
    (repr, 'repr'),
    (ascii, 'ascii'),
)
MAKE_FUNCTION = opmap['MAKE_FUNCTION']
MAKE_FUNCTION_FLAGS = ('defaults', 'kwdefaults', 'annotations', 'closure')

LOAD_CONST = opmap['LOAD_CONST']
RETURN_CONST = opmap['RETURN_CONST']
LOAD_GLOBAL = opmap['LOAD_GLOBAL']
BINARY_OP = opmap['BINARY_OP']
JUMP_BACKWARD = opmap['JUMP_BACKWARD']
FOR_ITER = opmap['FOR_ITER']
SEND = opmap['SEND']
LOAD_ATTR = opmap['LOAD_ATTR']
LOAD_SUPER_ATTR = opmap['LOAD_SUPER_ATTR']
CALL_INTRINSIC_1 = opmap['CALL_INTRINSIC_1']
CALL_INTRINSIC_2 = opmap['CALL_INTRINSIC_2']

CACHE = opmap["CACHE"]

_all_opname = list(opname)
_all_opmap = dict(opmap)
_empty_slot = [slot for slot, name in enumerate(_all_opname) if name.startswith("<")]
for spec_op, specialized in zip(_empty_slot, _specialized_instructions):
    # fill opname and opmap
    _all_opname[spec_op] = specialized
    _all_opmap[specialized] = spec_op

deoptmap = {
    specialized: base for base, family in _specializations.items() for specialized in family
}

def _try_compile(source, name):
    """Attempts to compile the given source, first as an expression and
       then as a statement if the first approach fails.

Utility function to accept strings in functions that otherwise
       expect code objects
    """
    try:
        return compile(source, name, 'eval')
    except SyntaxError:
        pass
    return compile(source, name, 'exec')

def dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False):
    """Disassemble classes, methods, functions, and other compiled objects.

With no argument, disassemble the last traceback.

Compiled objects currently include generator objects, async generator
    objects, and coroutine objects, all of which store their code object
    in a special attribute.
    """
    if x is None:
        distb(file=file, show_caches=show_caches, adaptive=adaptive)
        return
    # Extract functions from methods.
    if hasattr(x, '__func__'):
        x = x.__func__
    # Extract compiled code objects from...
    if hasattr(x, '__code__'):  # ...a function, or
        x = x.__code__
    elif hasattr(x, 'gi_code'):  #...a generator object, or
        x = x.gi_code
    elif hasattr(x, 'ag_code'):  #...an asynchronous generator object, or
        x = x.ag_code
    elif hasattr(x, 'cr_code'):  #...a coroutine.
        x = x.cr_code
    # Perform the disassembly.
    if hasattr(x, '__dict__'):  # Class or module
        items = sorted(x.__dict__.items())
        for name, x1 in items:
            if isinstance(x1, _have_code):
                print("Disassembly of %s:" % name, file=file)
                try:
                    dis(x1, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive)
                except TypeError as msg:
                    print("Sorry:", msg, file=file)
                print(file=file)
    elif hasattr(x, 'co_code'): # Code object
        _disassemble_recursive(x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive)
    elif isinstance(x, (bytes, bytearray)): # Raw bytecode
        _disassemble_bytes(x, file=file, show_caches=show_caches)
    elif isinstance(x, str):    # Source code
        _disassemble_str(x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive)
    else:
        raise TypeError("don't know how to disassemble %s objects" %
                        type(x).__name__)

def distb(tb=None, *, file=None, show_caches=False, adaptive=False):
    """Disassemble a traceback (default: last traceback)."""
    if tb is None:
        try:
            if hasattr(sys, 'last_exc'):
                tb = sys.last_exc.__traceback__
            else:
                tb = sys.last_traceback
        except AttributeError:
            raise RuntimeError("no last traceback to disassemble") from None
        while tb.tb_next: tb = tb.tb_next
    disassemble(tb.tb_frame.f_code, tb.tb_lasti, file=file, show_caches=show_caches, adaptive=adaptive)

# The inspect module interrogates this dictionary to build its
# list of CO_* constants. It is also used by pretty_flags to
# turn the co_flags field into a human readable list.
COMPILER_FLAG_NAMES = {
     1: "OPTIMIZED",
     2: "NEWLOCALS",
     4: "VARARGS",
     8: "VARKEYWORDS",
    16: "NESTED",
    32: "GENERATOR",
    64: "NOFREE",
   128: "COROUTINE",
   256: "ITERABLE_COROUTINE",
   512: "ASYNC_GENERATOR",
}

def pretty_flags(flags):
    """Return pretty representation of code flags."""
    names = []
    for i in range(32):
        flag = 1<<i
        if flags & flag:
            names.append(COMPILER_FLAG_NAMES.get(flag, hex(flag)))
            flags ^= flag
            if not flags:
                break
    else:
        names.append(hex(flags))
    return ", ".join(names)

class _Unknown:
    def __repr__(self):
        return "<unknown>"

# Sentinel to represent values that cannot be calculated
UNKNOWN = _Unknown()

def _get_code_object(x):
    """Helper to handle methods, compiled or raw code objects, and strings."""
    # Extract functions from methods.
    if hasattr(x, '__func__'):
        x = x.__func__
    # Extract compiled code objects from...
    if hasattr(x, '__code__'):  # ...a function, or
        x = x.__code__
    elif hasattr(x, 'gi_code'):  #...a generator object, or
        x = x.gi_code
    elif hasattr(x, 'ag_code'):  #...an asynchronous generator object, or
        x = x.ag_code
    elif hasattr(x, 'cr_code'):  #...a coroutine.
        x = x.cr_code
    # Handle source code.
    if isinstance(x, str):
        x = _try_compile(x, "<disassembly>")
    # By now, if we don't have a code object, we can't disassemble x.
    if hasattr(x, 'co_code'):
        return x
    raise TypeError("don't know how to disassemble %s objects" %
                    type(x).__name__)

def _deoptop(op):
    name = _all_opname[op]
    return _all_opmap[deoptmap[name]] if name in deoptmap else op

def _get_code_array(co, adaptive):
    return co._co_code_adaptive if adaptive else co.co_code

def code_info(x):
    """Formatted details of methods, functions, or code."""
    return _format_code_info(_get_code_object(x))

def _format_code_info(co):
    lines = []
    lines.append("Name:              %s" % co.co_name)
    lines.append("Filename:          %s" % co.co_filename)
    lines.append("Argument count:    %s" % co.co_argcount)
    lines.append("Positional-only arguments: %s" % co.co_posonlyargcount)
    lines.append("Kw-only arguments: %s" % co.co_kwonlyargcount)
    lines.append("Number of locals:  %s" % co.co_nlocals)
    lines.append("Stack size:        %s" % co.co_stacksize)
    lines.append("Flags:             %s" % pretty_flags(co.co_flags))
    if co.co_consts:
        lines.append("Constants:")
        for i_c in enumerate(co.co_consts):
            lines.append("%4d: %r" % i_c)
    if co.co_names:
        lines.append("Names:")
        for i_n in enumerate(co.co_names):
            lines.append("%4d: %s" % i_n)
    if co.co_varnames:
        lines.append("Variable names:")
        for i_n in enumerate(co.co_varnames):
            lines.append("%4d: %s" % i_n)
    if co.co_freevars:
        lines.append("Free variables:")
        for i_n in enumerate(co.co_freevars):
            lines.append("%4d: %s" % i_n)
    if co.co_cellvars:
        lines.append("Cell variables:")
        for i_n in enumerate(co.co_cellvars):
            lines.append("%4d: %s" % i_n)
    return "\n".join(lines)

def show_code(co, *, file=None):
    """Print details of methods, functions, or code to *file*.

If *file* is not provided, the output is printed on stdout.
    """
    print(code_info(co), file=file)

Positions = collections.namedtuple(
    'Positions',
    [
        'lineno',
        'end_lineno',
        'col_offset',
        'end_col_offset',
    ],
    defaults=[None] * 4
)

_Instruction = collections.namedtuple(
    "_Instruction",
    [
        'opname',
        'opcode',
        'arg',
        'argval',
        'argrepr',
        'offset',
        'starts_line',
        'is_jump_target',
        'positions'
    ],
    defaults=[None]
)

_Instruction.opname.__doc__ = "Human readable name for operation"
_Instruction.opcode.__doc__ = "Numeric code for operation"
_Instruction.arg.__doc__ = "Numeric argument to operation (if any), otherwise None"
_Instruction.argval.__doc__ = "Resolved arg value (if known), otherwise same as arg"
_Instruction.argrepr.__doc__ = "Human readable description of operation argument"
_Instruction.offset.__doc__ = "Start index of operation within bytecode sequence"
_Instruction.starts_line.__doc__ = "Line started by this opcode (if any), otherwise None"
_Instruction.is_jump_target.__doc__ = "True if other code jumps to here, otherwise False"
_Instruction.positions.__doc__ = "dis.Positions object holding the span of source code covered by this instruction"

_ExceptionTableEntry = collections.namedtuple("_ExceptionTableEntry",
    "start end target depth lasti")

_OPNAME_WIDTH = 20
_OPARG_WIDTH = 5

class Instruction(_Instruction):
    """Details for a bytecode operation

Defined fields:
         opname - human readable name for operation
         opcode - numeric code for operation
         arg - numeric argument to operation (if any), otherwise None
         argval - resolved arg value (if known), otherwise same as arg
         argrepr - human readable description of operation argument
         offset - start index of operation within bytecode sequence
         starts_line - line started by this opcode (if any), otherwise None
         is_jump_target - True if other code jumps to here, otherwise False
         positions - Optional dis.Positions object holding the span of source code
                     covered by this instruction
    """

def _disassemble(self, lineno_width=3, mark_as_current=False, offset_width=4):
        """Format instruction details for inclusion in disassembly output

*lineno_width* sets the width of the line number field (0 omits it)
        *mark_as_current* inserts a '-->' marker arrow as part of the line
        *offset_width* sets the width of the instruction offset field
        """
        fields = []
        # Column: Source code line number
        if lineno_width:
            if self.starts_line is not None:
                lineno_fmt = "%%%dd" % lineno_width
                fields.append(lineno_fmt % self.starts_line)
            else:
                fields.append(' ' * lineno_width)
        # Column: Current instruction indicator
        if mark_as_current:
            fields.append('-->')
        else:
            fields.append('   ')
        # Column: Jump target marker
        if self.is_jump_target:
            fields.append('>>')
        else:
            fields.append('  ')
        # Column: Instruction offset from start of code sequence
        fields.append(repr(self.offset).rjust(offset_width))
        # Column: Opcode name
        fields.append(self.opname.ljust(_OPNAME_WIDTH))
        # Column: Opcode argument
        if self.arg is not None:
            fields.append(repr(self.arg).rjust(_OPARG_WIDTH))
            # Column: Opcode argument details
            if self.argrepr:
                fields.append('(' + self.argrepr + ')')
        return ' '.join(fields).rstrip()

def get_instructions(x, *, first_line=None, show_caches=False, adaptive=False):
    """Iterator for the opcodes in methods, functions or code

Generates a series of Instruction named tuples giving the details of
    each operations in the supplied code.

If *first_line* is not None, it indicates the line number that should
    be reported for the first source line in the disassembled code.
    Otherwise, the source line information (if any) is taken directly from
    the disassembled code object.
    """
    co = _get_code_object(x)
    linestarts = dict(findlinestarts(co))
    if first_line is not None:
        line_offset = first_line - co.co_firstlineno
    else:
        line_offset = 0
    return _get_instructions_bytes(_get_code_array(co, adaptive),
                                   co._varname_from_oparg,
                                   co.co_names, co.co_consts,
                                   linestarts, line_offset,
                                   co_positions=co.co_positions(),
                                   show_caches=show_caches)

def _get_const_value(op, arg, co_consts):
    """Helper to get the value of the const in a hasconst op.

Returns the dereferenced constant if this is possible.
       Otherwise (if it is a LOAD_CONST and co_consts is not
       provided) returns the dis.UNKNOWN sentinel.
    """
    assert op in hasconst

argval = UNKNOWN
    if co_consts is not None:
        argval = co_consts[arg]
    return argval

def _get_const_info(op, arg, co_consts):
    """Helper to get optional details about const references

Returns the dereferenced constant and its repr if the value
       can be calculated.
       Otherwise returns the sentinel value dis.UNKNOWN for the value
       and an empty string for its repr.
    """
    argval = _get_const_value(op, arg, co_consts)
    argrepr = repr(argval) if argval is not UNKNOWN else ''
    return argval, argrepr

def _get_name_info(name_index, get_name, **extrainfo):
    """Helper to get optional details about named references

Returns the dereferenced name as both value and repr if the name
       list is defined.
       Otherwise returns the sentinel value dis.UNKNOWN for the value
       and an empty string for its repr.
    """
    if get_name is not None:
        argval = get_name(name_index, **extrainfo)
        return argval, argval
    else:
        return UNKNOWN, ''

def _parse_varint(iterator):
    b = next(iterator)
    val = b & 63
    while b&64:
        val <<= 6
        b = next(iterator)
        val |= b&63
    return val

def _parse_exception_table(code):
    iterator = iter(code.co_exceptiontable)
    entries = []
    try:
        while True:
            start = _parse_varint(iterator)*2
            length = _parse_varint(iterator)*2
            end = start + length
            target = _parse_varint(iterator)*2
            dl = _parse_varint(iterator)
            depth = dl >> 1
            lasti = bool(dl&1)
            entries.append(_ExceptionTableEntry(start, end, target, depth, lasti))
    except StopIteration:
        return entries

def _is_backward_jump(op):
    return 'JUMP_BACKWARD' in opname[op]

def _get_instructions_bytes(code, varname_from_oparg=None,
                            names=None, co_consts=None,
                            linestarts=None, line_offset=0,
                            exception_entries=(), co_positions=None,
                            show_caches=False):
    """Iterate over the instructions in a bytecode string.

Generates a sequence of Instruction namedtuples giving the details of each
    opcode.  Additional information about the code's runtime environment
    (e.g. variable names, co_consts) can be specified using optional
    arguments.

"""
    co_positions = co_positions or iter(())
    get_name = None if names is None else names.__getitem__
    labels = set(findlabels(code))
    for start, end, target, _, _ in exception_entries:
        for i in range(start, end):
            labels.add(target)
    starts_line = None
    for offset, op, arg in _unpack_opargs(code):
        if linestarts is not None:
            starts_line = linestarts.get(offset, None)
            if starts_line is not None:
                starts_line += line_offset
        is_jump_target = offset in labels
        argval = None
        argrepr = ''
        positions = Positions(*next(co_positions, ()))
        deop = _deoptop(op)
        caches = _inline_cache_entries[deop]
        if arg is not None:
            #  Set argval to the dereferenced value of the argument when
            #  available, and argrepr to the string representation of argval.
            #    _disassemble_bytes needs the string repr of the
            #    raw name index for LOAD_GLOBAL, LOAD_CONST, etc.
            argval = arg
            if deop in hasconst:
                argval, argrepr = _get_const_info(deop, arg, co_consts)
            elif deop in hasname:
                if deop == LOAD_GLOBAL:
                    argval, argrepr = _get_name_info(arg//2, get_name)
                    if (arg & 1) and argrepr:
                        argrepr = "NULL + " + argrepr
                elif deop == LOAD_ATTR:
                    argval, argrepr = _get_name_info(arg//2, get_name)
                    if (arg & 1) and argrepr:
                        argrepr = "NULL|self + " + argrepr
                elif deop == LOAD_SUPER_ATTR:
                    argval, argrepr = _get_name_info(arg//4, get_name)
                    if (arg & 1) and argrepr:
                        argrepr = "NULL|self + " + argrepr
                else:
                    argval, argrepr = _get_name_info(arg, get_name)
            elif deop in hasjabs:
                argval = arg*2
                argrepr = "to " + repr(argval)
            elif deop in hasjrel:
                signed_arg = -arg if _is_backward_jump(deop) else arg
                argval = offset + 2 + signed_arg*2
                argval += 2 * caches
                argrepr = "to " + repr(argval)
            elif deop in haslocal or deop in hasfree:
                argval, argrepr = _get_name_info(arg, varname_from_oparg)
            elif deop in hascompare:
                argval = cmp_op[arg>>4]
                argrepr = argval
            elif deop == FORMAT_VALUE:
                argval, argrepr = FORMAT_VALUE_CONVERTERS[arg & 0x3]
                argval = (argval, bool(arg & 0x4))
                if argval[1]:
                    if argrepr:
                        argrepr += ', '
                    argrepr += 'with format'
            elif deop == MAKE_FUNCTION:
                argrepr = ', '.join(s for i, s in enumerate(MAKE_FUNCTION_FLAGS)
                                    if arg & (1<<i))
            elif deop == BINARY_OP:
                _, argrepr = _nb_ops[arg]
            elif deop == CALL_INTRINSIC_1:
                argrepr = _intrinsic_1_descs[arg]
            elif deop == CALL_INTRINSIC_2:
                argrepr = _intrinsic_2_descs[arg]
        yield Instruction(_all_opname[op], op,
                          arg, argval, argrepr,
                          offset, starts_line, is_jump_target, positions)
        caches = _inline_cache_entries[deop]
        if not caches:
            continue
        if not show_caches:
            # We still need to advance the co_positions iterator:
            for _ in range(caches):
                next(co_positions, ())
            continue
        for name, size in _cache_format[opname[deop]].items():
            for i in range(size):
                offset += 2
                # Only show the fancy argrepr for a CACHE instruction when it's
                # the first entry for a particular cache value:
                if i == 0:
                    data = code[offset: offset + 2 * size]
                    argrepr = f"{name}: {int.from_bytes(data, sys.byteorder)}"
                else:
                    argrepr = ""
                yield Instruction(
                    "CACHE", CACHE, 0, None, argrepr, offset, None, False,
                    Positions(*next(co_positions, ()))
                )

def disassemble(co, lasti=-1, *, file=None, show_caches=False, adaptive=False):
    """Disassemble a code object."""
    linestarts = dict(findlinestarts(co))
    exception_entries = _parse_exception_table(co)
    _disassemble_bytes(_get_code_array(co, adaptive),
                       lasti, co._varname_from_oparg,
                       co.co_names, co.co_consts, linestarts, file=file,
                       exception_entries=exception_entries,
                       co_positions=co.co_positions(), show_caches=show_caches)

def _disassemble_recursive(co, *, file=None, depth=None, show_caches=False, adaptive=False):
    disassemble(co, file=file, show_caches=show_caches, adaptive=adaptive)
    if depth is None or depth > 0:
        if depth is not None:
            depth = depth - 1
        for x in co.co_consts:
            if hasattr(x, 'co_code'):
                print(file=file)
                print("Disassembly of %r:" % (x,), file=file)
                _disassemble_recursive(
                    x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive
                )

def _disassemble_bytes(code, lasti=-1, varname_from_oparg=None,
                       names=None, co_consts=None, linestarts=None,
                       *, file=None, line_offset=0, exception_entries=(),
                       co_positions=None, show_caches=False):
    # Omit the line number column entirely if we have no line number info
    show_lineno = bool(linestarts)
    if show_lineno:
        maxlineno = max(linestarts.values()) + line_offset
        if maxlineno >= 1000:
            lineno_width = len(str(maxlineno))
        else:
            lineno_width = 3
    else:
        lineno_width = 0
    maxoffset = len(code) - 2
    if maxoffset >= 10000:
        offset_width = len(str(maxoffset))
    else:
        offset_width = 4
    for instr in _get_instructions_bytes(code, varname_from_oparg, names,
                                         co_consts, linestarts,
                                         line_offset=line_offset,
                                         exception_entries=exception_entries,
                                         co_positions=co_positions,
                                         show_caches=show_caches):
        new_source_line = (show_lineno and
                           instr.starts_line is not None and
                           instr.offset > 0)
        if new_source_line:
            print(file=file)
        if show_caches:
            is_current_instr = instr.offset == lasti
        else:
            # Each CACHE takes 2 bytes
            is_current_instr = instr.offset <= lasti \
                <= instr.offset + 2 * _inline_cache_entries[_deoptop(instr.opcode)]
        print(instr._disassemble(lineno_width, is_current_instr, offset_width),
              file=file)
    if exception_entries:
        print("ExceptionTable:", file=file)
        for entry in exception_entries:
            lasti = " lasti" if entry.lasti else ""
            end = entry.end-2
            print(f"  {entry.start} to {end} -> {entry.target} [{entry.depth}]{lasti}", file=file)

def _disassemble_str(source, **kwargs):
    """Compile the source string, then disassemble the code object."""
    _disassemble_recursive(_try_compile(source, '<dis>'), **kwargs)

disco = disassemble                     # XXX For backwards compatibility

# Rely on C `int` being 32 bits for oparg
_INT_BITS = 32
# Value for c int when it overflows
_INT_OVERFLOW = 2 ** (_INT_BITS - 1)

def _unpack_opargs(code):
    extended_arg = 0
    caches = 0
    for i in range(0, len(code), 2):
        # Skip inline CACHE entries:
        if caches:
            caches -= 1
            continue
        op = code[i]
        deop = _deoptop(op)
        caches = _inline_cache_entries[deop]
        if deop in hasarg:
            arg = code[i+1] | extended_arg
            extended_arg = (arg << 8) if deop == EXTENDED_ARG else 0
            # The oparg is stored as a signed integer
            # If the value exceeds its upper limit, it will overflow and wrap
            # to a negative integer
            if extended_arg >= _INT_OVERFLOW:
                extended_arg -= 2 * _INT_OVERFLOW
        else:
            arg = None
            extended_arg = 0
        yield (i, op, arg)

def findlabels(code):
    """Detect all offsets in a byte code which are jump targets.

Return the list of offsets.

"""
    labels = []
    for offset, op, arg in _unpack_opargs(code):
        if arg is not None:
            deop = _deoptop(op)
            caches = _inline_cache_entries[deop]
            if deop in hasjrel:
                if _is_backward_jump(deop):
                    arg = -arg
                label = offset + 2 + arg*2
                label += 2 * caches
            elif deop in hasjabs:
                label = arg*2
            else:
                continue
            if label not in labels:
                labels.append(label)
    return labels

def findlinestarts(code):
    """Find the offsets in a byte code which are start of lines in the source.

Generate pairs (offset, lineno)
    """
    lastline = None
    for start, end, line in code.co_lines():
        if line is not None and line != lastline:
            lastline = line
            yield start, line
    return

def _find_imports(co):
    """Find import statements in the code

Generate triplets (name, level, fromlist) where
    name is the imported module and level, fromlist are
    the corresponding args to __import__.
    """
    IMPORT_NAME = opmap['IMPORT_NAME']

consts = co.co_consts
    names = co.co_names
    opargs = [(op, arg) for _, op, arg in _unpack_opargs(co.co_code)
                  if op != EXTENDED_ARG]
    for i, (op, oparg) in enumerate(opargs):
        if op == IMPORT_NAME and i >= 2:
            from_op = opargs[i-1]
            level_op = opargs[i-2]
            if (from_op[0] in hasconst and level_op[0] in hasconst):
                level = _get_const_value(level_op[0], level_op[1], consts)
                fromlist = _get_const_value(from_op[0], from_op[1], consts)
                yield (names[oparg], level, fromlist)

def _find_store_names(co):
    """Find names of variables which are written in the code

Generate sequence of strings
    """
    STORE_OPS = {
        opmap['STORE_NAME'],
        opmap['STORE_GLOBAL']
    }

names = co.co_names
    for _, op, arg in _unpack_opargs(co.co_code):
        if op in STORE_OPS:
            yield names[arg]

class Bytecode:
    """The bytecode operations of a piece of code

Instantiate this with a function, method, other compiled object, string of
    code, or a code object (as returned by compile()).

Iterating over this yields the bytecode operations as Instruction instances.
    """
    def __init__(self, x, *, first_line=None, current_offset=None, show_caches=False, adaptive=False):
        self.codeobj = co = _get_code_object(x)
        if first_line is None:
            self.first_line = co.co_firstlineno
            self._line_offset = 0
        else:
            self.first_line = first_line
            self._line_offset = first_line - co.co_firstlineno
        self._linestarts = dict(findlinestarts(co))
        self._original_object = x
        self.current_offset = current_offset
        self.exception_entries = _parse_exception_table(co)
        self.show_caches = show_caches
        self.adaptive = adaptive

def __iter__(self):
        co = self.codeobj
        return _get_instructions_bytes(_get_code_array(co, self.adaptive),
                                       co._varname_from_oparg,
                                       co.co_names, co.co_consts,
                                       self._linestarts,
                                       line_offset=self._line_offset,
                                       exception_entries=self.exception_entries,
                                       co_positions=co.co_positions(),
                                       show_caches=self.show_caches)

def __repr__(self):
        return "{}({!r})".format(self.__class__.__name__,
                                 self._original_object)

@classmethod
    def from_traceback(cls, tb, *, show_caches=False, adaptive=False):
        """ Construct a Bytecode from the given traceback """
        while tb.tb_next:
            tb = tb.tb_next
        return cls(
            tb.tb_frame.f_code, current_offset=tb.tb_lasti, show_caches=show_caches, adaptive=adaptive
        )

def info(self):
        """Return formatted information about the code object."""
        return _format_code_info(self.codeobj)

def dis(self):
        """Return a formatted view of the bytecode operations."""
        co = self.codeobj
        if self.current_offset is not None:
            offset = self.current_offset
        else:
            offset = -1
        with io.StringIO() as output:
            _disassemble_bytes(_get_code_array(co, self.adaptive),
                               varname_from_oparg=co._varname_from_oparg,
                               names=co.co_names, co_consts=co.co_consts,
                               linestarts=self._linestarts,
                               line_offset=self._line_offset,
                               file=output,
                               lasti=offset,
                               exception_entries=self.exception_entries,
                               co_positions=co.co_positions(),
                               show_caches=self.show_caches)
            return output.getvalue()

def main(args=None):
    import argparse

parser = argparse.ArgumentParser()
    parser.add_argument('infile', type=argparse.FileType('rb'), nargs='?', default='-')
    args = parser.parse_args(args=args)
    with args.infile as infile:
        source = infile.read()
    code = compile(source, args.infile.name, "exec")
    dis(code)

if __name__ == "__main__":
    main()

cmd: