FM / python3.11

/opt/alt/python311/lib64/python3.11

Name	Size	Mode	Actions
asyncio/	-	0755	rm
collections/	-	0755	rm
concurrent/	-	0755	rm
config-3.11-x86_64-linux-gnu/	-	0755	rm
ctypes/	-	0755	rm
curses/	-	0755	rm
dbm/	-	0755	rm
distutils/	-	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
zoneinfo/	-	0755	rm
__phello__/	-	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	100283	0644	edit dl rm
ast.py	61444	0644	edit dl rm
asynchat.py	11570	0644	edit dl rm
asyncore.py	20310	0644	edit dl rm
base64.py	21041	0755	edit dl rm
bdb.py	32463	0644	edit dl rm
bisect.py	3135	0644	edit dl rm
bz2.py	11847	0644	edit dl rm
calendar.py	24731	0644	edit dl rm
cgi.py	34432	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	10622	0644	edit dl rm
codecs.py	37150	0644	edit dl rm
codeop.py	5907	0644	edit dl rm
colorsys.py	4062	0644	edit dl rm
compileall.py	20252	0644	edit dl rm
configparser.py	55660	0644	edit dl rm
contextlib.py	27414	0644	edit dl rm
contextvars.py	129	0644	edit dl rm
copy.py	8681	0644	edit dl rm
copyreg.py	7677	0644	edit dl rm
cProfile.py	6359	0755	edit dl rm
crypt.py	3913	0644	edit dl rm
csv.py	16030	0644	edit dl rm
dataclasses.py	58472	0644	edit dl rm
datetime.py	91832	0644	edit dl rm
decimal.py	320	0644	edit dl rm
difflib.py	83308	0644	edit dl rm
dis.py	28906	0644	edit dl rm
doctest.py	106297	0644	edit dl rm
enum.py	79583	0644	edit dl rm
filecmp.py	10178	0644	edit dl rm
fileinput.py	15714	0644	edit dl rm
fnmatch.py	5999	0644	edit dl rm
fractions.py	28677	0644	edit dl rm
ftplib.py	35815	0644	edit dl rm
functools.py	38413	0644	edit dl rm
genericpath.py	4975	0644	edit dl rm
getopt.py	7489	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	9656	0644	edit dl rm
gzip.py	24074	0644	edit dl rm
hashlib.py	11765	0644	edit dl rm
heapq.py	23024	0644	edit dl rm
hmac.py	7716	0644	edit dl rm
imaplib.py	55217	0644	edit dl rm
imghdr.py	3952	0644	edit dl rm
imp.py	10606	0644	edit dl rm
inspect.py	123419	0644	edit dl rm
io.py	4320	0644	edit dl rm
ipaddress.py	79124	0644	edit dl rm
keyword.py	1061	0644	edit dl rm
LICENSE.txt	13936	0644	edit dl rm
linecache.py	5649	0644	edit dl rm
locale.py	79095	0644	edit dl rm
lzma.py	13277	0644	edit dl rm
mailbox.py	78830	0644	edit dl rm
mailcap.py	9369	0644	edit dl rm
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modulefinder.py	23699	0644	edit dl rm
netrc.py	6929	0644	edit dl rm
nntplib.py	41087	0644	edit dl rm
ntpath.py	30222	0644	edit dl rm
nturl2path.py	2887	0644	edit dl rm
numbers.py	10348	0644	edit dl rm
opcode.py	10447	0644	edit dl rm
operator.py	10965	0644	edit dl rm
optparse.py	60369	0644	edit dl rm
os.py	39530	0644	edit dl rm
pathlib.py	48566	0644	edit dl rm
pdb.py	64186	0755	edit dl rm
pickle.py	65132	0644	edit dl rm
pickletools.py	93861	0644	edit dl rm
pipes.py	8978	0644	edit dl rm
pkgutil.py	24638	0644	edit dl rm
platform.py	42287	0755	edit dl rm
plistlib.py	28354	0644	edit dl rm
poplib.py	15198	0644	edit dl rm
posixpath.py	17013	0644	edit dl rm
pprint.py	24583	0644	edit dl rm
profile.py	22896	0755	edit dl rm
pstats.py	29356	0644	edit dl rm
pty.py	6317	0644	edit dl rm
pyclbr.py	11396	0644	edit dl rm
pydoc.py	112664	0755	edit dl rm
py_compile.py	7837	0644	edit dl rm
queue.py	11496	0644	edit dl rm
quopri.py	7281	0755	edit dl rm
random.py	32162	0644	edit dl rm
reprlib.py	5437	0644	edit dl rm
rlcompleter.py	7827	0644	edit dl rm
runpy.py	13159	0644	edit dl rm
sched.py	6351	0644	edit dl rm
secrets.py	2028	0644	edit dl rm
selectors.py	19671	0644	edit dl rm
shelve.py	8560	0644	edit dl rm
shlex.py	13501	0644	edit dl rm
shutil.py	56517	0644	edit dl rm
signal.py	2495	0644	edit dl rm
site.py	22987	0644	edit dl rm
smtpd.py	31175	0755	edit dl rm
smtplib.py	45431	0755	edit dl rm
sndhdr.py	7448	0644	edit dl rm
socket.py	37557	0644	edit dl rm
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sre_constants.py	232	0644	edit dl rm
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ssl.py	54305	0644	edit dl rm
stat.py	5485	0644	edit dl rm
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string.py	11786	0644	edit dl rm
stringprep.py	12917	0644	edit dl rm
struct.py	257	0644	edit dl rm
subprocess.py	88725	0644	edit dl rm
sunau.py	18480	0644	edit dl rm
symtable.py	10368	0644	edit dl rm
sysconfig.py	30315	0644	edit dl rm
tabnanny.py	11312	0755	edit dl rm
tarfile.py	107876	0755	edit dl rm
telnetlib.py	23301	0644	edit dl rm
tempfile.py	31873	0644	edit dl rm
textwrap.py	19718	0644	edit dl rm
this.py	1003	0644	edit dl rm
threading.py	58231	0644	edit dl rm
timeit.py	13532	0755	edit dl rm
token.py	2386	0644	edit dl rm
tokenize.py	26336	0644	edit dl rm
trace.py	29196	0755	edit dl rm
traceback.py	40547	0644	edit dl rm
tracemalloc.py	18047	0644	edit dl rm
tty.py	879	0644	edit dl rm
types.py	10067	0644	edit dl rm
typing.py	120951	0644	edit dl rm
uu.py	7341	0644	edit dl rm
uuid.py	27597	0644	edit dl rm
warnings.py	21110	0644	edit dl rm
wave.py	21818	0644	edit dl rm
weakref.py	21513	0644	edit dl rm
webbrowser.py	25149	0755	edit dl rm
xdrlib.py	5977	0644	edit dl rm
zipapp.py	7535	0644	edit dl rm
zipfile.py	93788	0644	edit dl rm
zipimport.py	30897	0644	edit dl rm
_aix_support.py	3389	0644	edit dl rm
_bootsubprocess.py	2675	0644	edit dl rm
_collections_abc.py	30193	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
_pydecimal.py	229202	0644	edit dl rm
_pyio.py	94193	0644	edit dl rm
_py_abc.py	6189	0644	edit dl rm
_sitebuiltins.py	3128	0644	edit dl rm
_strptime.py	25175	0644	edit dl rm
_sysconfigdata_d_linux_x86_64-linux-gnu.py	58878	0644	edit dl rm
_sysconfigdata__linux_x86_64-linux-gnu.py	59645	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: /opt/alt/python311/lib64/python3.11/dis.py (28906B)

"""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,
    _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']
LOAD_GLOBAL = opmap['LOAD_GLOBAL']
BINARY_OP = opmap['BINARY_OP']
JUMP_BACKWARD = opmap['JUMP_BACKWARD']

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:
        c = compile(source, name, 'eval')
    except SyntaxError:
        c = compile(source, name, 'exec')
    return c

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:
            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 op == LOAD_CONST:
        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)
        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
                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
                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]
                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]
        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 and the
                # instruction using it is actually quickened:
                if i == 0 and op != deop:
                    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)
        is_current_instr = instr.offset == lasti
        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 >= HAVE_ARGUMENT:
            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:
            if op in hasjrel:
                if _is_backward_jump(op):
                    arg = -arg
                label = offset + 2 + arg*2
            elif op 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']
    LOAD_CONST = opmap['LOAD_CONST']

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():
    import argparse

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

if __name__ == "__main__":
    main()

cmd: