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?? __pycache__
?? _compat_pickle.py(4.24 KB)
?? _dummy_thread.py(4.66 KB)
?? _markupbase.py(14.26 KB)
?? _osx_support.py(18.41 KB)
?? _pyio.py(71.2 KB)
?? _strptime.py(21.17 KB)
?? _sysconfigdata.py(22.31 KB)
?? _threading_local.py(7.24 KB)
?? _weakrefset.py(5.57 KB)
?? abc.py(7.87 KB)
?? aifc.py(30.33 KB)
?? antigravity.py(475 B)
?? argparse.py(86.98 KB)
?? ast.py(11.86 KB)
?? asynchat.py(11.32 KB)
?? asyncore.py(20.27 KB)
?? base64.py(13.66 KB)
?? bdb.py(21.38 KB)
?? binhex.py(13.39 KB)
?? bisect.py(2.53 KB)
?? bz2.py(18.04 KB)
?? cProfile.py(6.21 KB)
?? calendar.py(22.4 KB)
?? cgi.py(34.72 KB)
?? cgitb.py(11.76 KB)
?? chunk.py(5.25 KB)
?? cmd.py(14.51 KB)
?? code.py(9.79 KB)
?? codecs.py(35.11 KB)
?? codeop.py(5.85 KB)
?? collections
?? colorsys.py(3.6 KB)
?? compileall.py(9.51 KB)
?? concurrent
?? config-3.3m
?? configparser.py(48.28 KB)
?? contextlib.py(8.91 KB)
?? copy.py(8.78 KB)
?? copyreg.py(6.46 KB)
?? crypt.py(1.83 KB)
?? csv.py(15.81 KB)
?? ctypes
?? curses
?? datetime.py(73.2 KB)
?? dbm
?? decimal.py(223.2 KB)
?? difflib.py(80.58 KB)
?? dis.py(9.9 KB)
?? distutils
?? doctest.py(100.52 KB)
?? dummy_threading.py(2.75 KB)
?? email
?? encodings
?? filecmp.py(9.37 KB)
?? fileinput.py(13.92 KB)
?? fnmatch.py(3.09 KB)
?? formatter.py(14.58 KB)
?? fractions.py(22.49 KB)
?? ftplib.py(39.31 KB)
?? functools.py(13.28 KB)
?? genericpath.py(3.02 KB)
?? getopt.py(7.31 KB)
?? getpass.py(5.66 KB)
?? gettext.py(20.15 KB)
?? glob.py(2.77 KB)
?? gzip.py(23.83 KB)
?? hashlib.py(6.05 KB)
?? heapq.py(17.58 KB)
?? hmac.py(4.34 KB)
?? html
?? http
?? idlelib
?? imaplib.py(48.94 KB)
?? imghdr.py(3.45 KB)
?? imp.py(9.5 KB)
?? importlib
?? inspect.py(77.11 KB)
?? io.py(3.2 KB)
?? ipaddress.py(68.66 KB)
?? json
?? keyword.py(2.01 KB)
?? lib-dynload
?? lib2to3
?? linecache.py(3.77 KB)
?? locale.py(91.03 KB)
?? logging
?? lzma.py(17.04 KB)
?? macpath.py(5.49 KB)
?? macurl2path.py(2.67 KB)
?? mailbox.py(77.24 KB)
?? mailcap.py(7.26 KB)
?? mimetypes.py(20.25 KB)
?? modulefinder.py(22.65 KB)
?? multiprocessing
?? netrc.py(5.61 KB)
?? nntplib.py(41.78 KB)
?? ntpath.py(19.96 KB)
?? nturl2path.py(2.34 KB)
?? numbers.py(10.15 KB)
?? opcode.py(4.98 KB)
?? optparse.py(58.93 KB)
?? os.py(33.96 KB)
?? os2emxpath.py(4.55 KB)
?? pdb.py(59.23 KB)
?? pickle.py(46.74 KB)
?? pickletools.py(79.44 KB)
?? pipes.py(8.71 KB)
?? pkgutil.py(21.03 KB)
?? plat-linux
?? platform.py(49.55 KB)
?? plistlib.py(14.43 KB)
?? poplib.py(11.11 KB)
?? posixpath.py(13.92 KB)
?? pprint.py(12.4 KB)
?? profile.py(20.95 KB)
?? pstats.py(25.75 KB)
?? pty.py(4.94 KB)
?? py_compile.py(6.56 KB)
?? pyclbr.py(13.12 KB)
?? pydoc.py(99.26 KB)
?? pydoc_data
?? queue.py(8.63 KB)
?? quopri.py(7.14 KB)
?? random.py(25.06 KB)
?? re.py(14.62 KB)
?? reprlib.py(4.99 KB)
?? rlcompleter.py(5.4 KB)
?? runpy.py(10.17 KB)
?? sched.py(6.25 KB)
?? shelve.py(8.05 KB)
?? shlex.py(11.23 KB)
?? shutil.py(38.23 KB)
?? site-packages
?? site.py(21.46 KB)
?? smtpd.py(29.5 KB)
?? smtplib.py(37.13 KB)
?? sndhdr.py(6.07 KB)
?? socket.py(14.56 KB)
?? socketserver.py(23.63 KB)
?? sqlite3
?? sre_compile.py(15.96 KB)
?? sre_constants.py(7.06 KB)
?? sre_parse.py(29.5 KB)
?? ssl.py(23.9 KB)
?? stat.py(4.2 KB)
?? string.py(9.19 KB)
?? stringprep.py(12.61 KB)
?? struct.py(238 B)
?? subprocess.py(65.99 KB)
?? sunau.py(17.11 KB)
?? symbol.py(2 KB)
?? symtable.py(7.21 KB)
?? sysconfig.py(24.58 KB)
?? tabnanny.py(11.14 KB)
?? tarfile.py(86.78 KB)
?? telnetlib.py(26.71 KB)
?? tempfile.py(22.47 KB)
?? test
?? textwrap.py(16.1 KB)
?? this.py(1003 B)
?? threading.py(44.57 KB)
?? timeit.py(12.1 KB)
?? token.py(2.96 KB)
?? tokenize.py(24.29 KB)
?? trace.py(30.75 KB)
?? traceback.py(11.7 KB)
?? tty.py(879 B)
?? types.py(3.09 KB)
?? unittest
?? urllib
?? uu.py(6.61 KB)
?? uuid.py(21.83 KB)
?? venv
?? warnings.py(13.5 KB)
?? wave.py(18.14 KB)
?? weakref.py(11.23 KB)
?? webbrowser.py(22.38 KB)
?? wsgiref
?? xdrlib.py(5.25 KB)
?? xml
?? xmlrpc
?? zipfile.py(64.87 KB)

Editing: dis.py

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

import sys
import types

from opcode import *
from opcode import __all__ as _opcodes_all

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

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

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):
    """Disassemble classes, methods, functions, or code.

With no argument, disassemble the last traceback.

"""
    if x is None:
        distb()
        return
    if hasattr(x, '__func__'):  # Method
        x = x.__func__
    if hasattr(x, '__code__'):  # Function
        x = x.__code__
    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)
                try:
                    dis(x1)
                except TypeError as msg:
                    print("Sorry:", msg)
                print()
    elif hasattr(x, 'co_code'): # Code object
        disassemble(x)
    elif isinstance(x, (bytes, bytearray)): # Raw bytecode
        _disassemble_bytes(x)
    elif isinstance(x, str):    # Source code
        _disassemble_str(x)
    else:
        raise TypeError("don't know how to disassemble %s objects" %
                        type(x).__name__)

def distb(tb=None):
    """Disassemble a traceback (default: last traceback)."""
    if tb is None:
        try:
            tb = sys.last_traceback
        except AttributeError:
            raise RuntimeError("no last traceback to disassemble")
        while tb.tb_next: tb = tb.tb_next
    disassemble(tb.tb_frame.f_code, tb.tb_lasti)

# 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",
}

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)

def code_info(x):
    """Formatted details of methods, functions, or code."""
    if hasattr(x, '__func__'): # Method
        x = x.__func__
    if hasattr(x, '__code__'): # Function
        x = x.__code__
    if isinstance(x, str):     # Source code
        x = _try_compile(x, "<code_info>")
    if hasattr(x, 'co_code'):  # Code object
        return _format_code_info(x)
    else:
        raise TypeError("don't know how to disassemble %s objects" %
                        type(x).__name__)

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("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):
    """Print details of methods, functions, or code to stdout."""
    print(code_info(co))

def disassemble(co, lasti=-1):
    """Disassemble a code object."""
    code = co.co_code
    labels = findlabels(code)
    linestarts = dict(findlinestarts(co))
    n = len(code)
    i = 0
    extended_arg = 0
    free = None
    while i < n:
        op = code[i]
        if i in linestarts:
            if i > 0:
                print()
            print("%3d" % linestarts[i], end=' ')
        else:
            print('   ', end=' ')

if i == lasti: print('-->', end=' ')
        else: print('   ', end=' ')
        if i in labels: print('>>', end=' ')
        else: print('  ', end=' ')
        print(repr(i).rjust(4), end=' ')
        print(opname[op].ljust(20), end=' ')
        i = i+1
        if op >= HAVE_ARGUMENT:
            oparg = code[i] + code[i+1]*256 + extended_arg
            extended_arg = 0
            i = i+2
            if op == EXTENDED_ARG:
                extended_arg = oparg*65536
            print(repr(oparg).rjust(5), end=' ')
            if op in hasconst:
                print('(' + repr(co.co_consts[oparg]) + ')', end=' ')
            elif op in hasname:
                print('(' + co.co_names[oparg] + ')', end=' ')
            elif op in hasjrel:
                print('(to ' + repr(i + oparg) + ')', end=' ')
            elif op in haslocal:
                print('(' + co.co_varnames[oparg] + ')', end=' ')
            elif op in hascompare:
                print('(' + cmp_op[oparg] + ')', end=' ')
            elif op in hasfree:
                if free is None:
                    free = co.co_cellvars + co.co_freevars
                print('(' + free[oparg] + ')', end=' ')
            elif op in hasnargs:
                print('(%d positional, %d keyword pair)'
                      % (code[i-2], code[i-1]), end=' ')
        print()

def _disassemble_bytes(code, lasti=-1, varnames=None, names=None,
                       constants=None):
    labels = findlabels(code)
    n = len(code)
    i = 0
    while i < n:
        op = code[i]
        if i == lasti: print('-->', end=' ')
        else: print('   ', end=' ')
        if i in labels: print('>>', end=' ')
        else: print('  ', end=' ')
        print(repr(i).rjust(4), end=' ')
        print(opname[op].ljust(15), end=' ')
        i = i+1
        if op >= HAVE_ARGUMENT:
            oparg = code[i] + code[i+1]*256
            i = i+2
            print(repr(oparg).rjust(5), end=' ')
            if op in hasconst:
                if constants:
                    print('(' + repr(constants[oparg]) + ')', end=' ')
                else:
                    print('(%d)'%oparg, end=' ')
            elif op in hasname:
                if names is not None:
                    print('(' + names[oparg] + ')', end=' ')
                else:
                    print('(%d)'%oparg, end=' ')
            elif op in hasjrel:
                print('(to ' + repr(i + oparg) + ')', end=' ')
            elif op in haslocal:
                if varnames:
                    print('(' + varnames[oparg] + ')', end=' ')
                else:
                    print('(%d)' % oparg, end=' ')
            elif op in hascompare:
                print('(' + cmp_op[oparg] + ')', end=' ')
            elif op in hasnargs:
                print('(%d positional, %d keyword pair)'
                      % (code[i-2], code[i-1]), end=' ')
        print()

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

disco = disassemble                     # XXX For backwards compatibility

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

Return the list of offsets.

"""
    labels = []
    n = len(code)
    i = 0
    while i < n:
        op = code[i]
        i = i+1
        if op >= HAVE_ARGUMENT:
            oparg = code[i] + code[i+1]*256
            i = i+2
            label = -1
            if op in hasjrel:
                label = i+oparg
            elif op in hasjabs:
                label = oparg
            if label >= 0:
                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) as described in Python/compile.c.

"""
    byte_increments = list(code.co_lnotab[0::2])
    line_increments = list(code.co_lnotab[1::2])

lastlineno = None
    lineno = code.co_firstlineno
    addr = 0
    for byte_incr, line_incr in zip(byte_increments, line_increments):
        if byte_incr:
            if lineno != lastlineno:
                yield (addr, lineno)
                lastlineno = lineno
            addr += byte_incr
        lineno += line_incr
    if lineno != lastlineno:
        yield (addr, lineno)

def _test():
    """Simple test program to disassemble a file."""
    if sys.argv[1:]:
        if sys.argv[2:]:
            sys.stderr.write("usage: python dis.py [-|file]\n")
            sys.exit(2)
        fn = sys.argv[1]
        if not fn or fn == "-":
            fn = None
    else:
        fn = None
    if fn is None:
        f = sys.stdin
    else:
        f = open(fn)
    source = f.read()
    if fn is not None:
        f.close()
    else:
        fn = "<stdin>"
    code = compile(source, fn, "exec")
    dis(code)

if __name__ == "__main__":
    _test()

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