FM / python3.9

/usr/lib64/python3.9

Name	Size	Mode	Actions
asyncio/	-	0755	rm
collections/	-	0755	rm
concurrent/	-	0755	rm
config-3.9-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
site-packages/	-	0755	rm
sqlite3/	-	0755	rm
unittest/	-	0755	rm
urllib/	-	0755	rm
venv/	-	0755	rm
wsgiref/	-	0755	rm
xml/	-	0755	rm
xmlrpc/	-	0755	rm
zoneinfo/	-	0755	rm
__pycache__/	-	0755	rm
abc.py	4920	0644	edit dl rm
aifc.py	32605	0644	edit dl rm
antigravity.py	500	0644	edit dl rm
argparse.py	98119	0644	edit dl rm
ast.py	56256	0644	edit dl rm
asynchat.py	11321	0644	edit dl rm
asyncore.py	20102	0644	edit dl rm
base64.py	19859	0755	edit dl rm
bdb.py	31389	0644	edit dl rm
binhex.py	14784	0644	edit dl rm
bisect.py	2350	0644	edit dl rm
bz2.py	12447	0644	edit dl rm
calendar.py	24832	0644	edit dl rm
cgi.py	33932	0755	edit dl rm
cgitb.py	12096	0644	edit dl rm
chunk.py	5435	0644	edit dl rm
cmd.py	14860	0644	edit dl rm
code.py	10622	0644	edit dl rm
codecs.py	36673	0644	edit dl rm
codeop.py	6326	0644	edit dl rm
colorsys.py	4064	0644	edit dl rm
compileall.py	20105	0644	edit dl rm
configparser.py	54584	0644	edit dl rm
contextlib.py	24624	0644	edit dl rm
contextvars.py	129	0644	edit dl rm
copy.py	8650	0644	edit dl rm
copyreg.py	7274	0644	edit dl rm
cProfile.py	6345	0755	edit dl rm
crypt.py	3819	0644	edit dl rm
csv.py	16144	0644	edit dl rm
dataclasses.py	49586	0644	edit dl rm
datetime.py	89177	0644	edit dl rm
decimal.py	320	0644	edit dl rm
difflib.py	83307	0644	edit dl rm
dis.py	20570	0644	edit dl rm
doctest.py	104568	0644	edit dl rm
enum.py	39440	0644	edit dl rm
filecmp.py	10024	0644	edit dl rm
fileinput.py	14791	0644	edit dl rm
fnmatch.py	6004	0644	edit dl rm
formatter.py	15143	0644	edit dl rm
fractions.py	24323	0644	edit dl rm
ftplib.py	35496	0644	edit dl rm
functools.py	38881	0644	edit dl rm
genericpath.py	5246	0644	edit dl rm
getopt.py	7489	0644	edit dl rm
getpass.py	5990	0644	edit dl rm
gettext.py	27266	0644	edit dl rm
glob.py	5823	0644	edit dl rm
graphlib.py	9573	0644	edit dl rm
gzip.py	21772	0644	edit dl rm
hashlib.py	8069	0644	edit dl rm
heapq.py	22877	0644	edit dl rm
hmac.py	8043	0644	edit dl rm
imaplib.py	55256	0644	edit dl rm
imghdr.py	3808	0644	edit dl rm
imp.py	10536	0644	edit dl rm
inspect.py	118235	0644	edit dl rm
io.py	3541	0644	edit dl rm
ipaddress.py	80924	0644	edit dl rm
keyword.py	1047	0644	edit dl rm
LICENSE.txt	13937	0644	edit dl rm
linecache.py	5461	0644	edit dl rm
locale.py	78271	0644	edit dl rm
lzma.py	13231	0644	edit dl rm
mailbox.py	78794	0644	edit dl rm
mailcap.py	9116	0644	edit dl rm
mimetypes.py	21564	0644	edit dl rm
modulefinder.py	24401	0644	edit dl rm
netrc.py	5566	0644	edit dl rm
nntplib.py	41023	0644	edit dl rm
ntpath.py	26460	0644	edit dl rm
nturl2path.py	2887	0644	edit dl rm
numbers.py	10338	0644	edit dl rm
opcode.py	5660	0644	edit dl rm
operator.py	10751	0644	edit dl rm
optparse.py	60369	0644	edit dl rm
os.py	39065	0644	edit dl rm
pathlib.py	51134	0644	edit dl rm
pdb.py	63237	0755	edit dl rm
pickle.py	64920	0644	edit dl rm
pickletools.py	93486	0644	edit dl rm
pipes.py	8916	0644	edit dl rm
pkgutil.py	24276	0644	edit dl rm
platform.py	40601	0755	edit dl rm
plistlib.py	28248	0644	edit dl rm
poplib.py	15198	0644	edit dl rm
posixpath.py	16146	0644	edit dl rm
pprint.py	22527	0644	edit dl rm
profile.py	22881	0755	edit dl rm
pstats.py	29326	0644	edit dl rm
pty.py	4807	0644	edit dl rm
pyclbr.py	15255	0644	edit dl rm
pydoc.py	109599	0755	edit dl rm
py_compile.py	8203	0644	edit dl rm
queue.py	11496	0644	edit dl rm
quopri.py	7266	0755	edit dl rm
random.py	31484	0644	edit dl rm
re.py	15861	0644	edit dl rm
reprlib.py	5267	0644	edit dl rm
rlcompleter.py	7648	0644	edit dl rm
runpy.py	13084	0644	edit dl rm
sched.py	6442	0644	edit dl rm
secrets.py	2036	0644	edit dl rm
selectors.py	19536	0644	edit dl rm
shelve.py	8527	0644	edit dl rm
shlex.py	13501	0644	edit dl rm
shutil.py	53030	0644	edit dl rm
signal.py	2438	0644	edit dl rm
site.py	22085	0644	edit dl rm
smtpd.py	34821	0755	edit dl rm
smtplib.py	45405	0755	edit dl rm
sndhdr.py	7099	0644	edit dl rm
socket.py	36915	0644	edit dl rm
socketserver.py	27296	0644	edit dl rm
sre_compile.py	27973	0644	edit dl rm
sre_constants.py	7177	0644	edit dl rm
sre_parse.py	40779	0644	edit dl rm
ssl.py	52622	0644	edit dl rm
stat.py	5485	0644	edit dl rm
statistics.py	38067	0644	edit dl rm
string.py	10566	0644	edit dl rm
stringprep.py	12917	0644	edit dl rm
struct.py	257	0644	edit dl rm
subprocess.py	83564	0644	edit dl rm
sunau.py	18158	0644	edit dl rm
symbol.py	2281	0644	edit dl rm
symtable.py	7905	0644	edit dl rm
sysconfig.py	25557	0644	edit dl rm
tabnanny.py	11406	0755	edit dl rm
tarfile.py	112939	0755	edit dl rm
telnetlib.py	23254	0644	edit dl rm
tempfile.py	27963	0644	edit dl rm
textwrap.py	19407	0644	edit dl rm
this.py	1003	0644	edit dl rm
threading.py	54176	0644	edit dl rm
timeit.py	13480	0755	edit dl rm
token.py	2368	0644	edit dl rm
tokenize.py	25883	0644	edit dl rm
trace.py	29207	0755	edit dl rm
traceback.py	24660	0644	edit dl rm
tracemalloc.py	18047	0644	edit dl rm
tty.py	879	0644	edit dl rm
types.py	9785	0644	edit dl rm
typing.py	77044	0644	edit dl rm
uu.py	7277	0644	edit dl rm
uuid.py	27324	0644	edit dl rm
warnings.py	19688	0644	edit dl rm
wave.py	18004	0644	edit dl rm
weakref.py	21560	0644	edit dl rm
webbrowser.py	24083	0755	edit dl rm
xdrlib.py	5913	0644	edit dl rm
zipapp.py	7535	0644	edit dl rm
zipfile.py	88899	0644	edit dl rm
zipimport.py	30765	0644	edit dl rm
_aix_support.py	3389	0644	edit dl rm
_bootlocale.py	1801	0644	edit dl rm
_bootsubprocess.py	2675	0644	edit dl rm
_collections_abc.py	29374	0644	edit dl rm
_compat_pickle.py	8749	0644	edit dl rm
_compression.py	5340	0644	edit dl rm
_markupbase.py	14623	0644	edit dl rm
_osx_support.py	21773	0644	edit dl rm
_pydecimal.py	228666	0644	edit dl rm
_pyio.py	93316	0644	edit dl rm
_py_abc.py	6189	0644	edit dl rm
_sitebuiltins.py	3115	0644	edit dl rm
_strptime.py	25277	0644	edit dl rm
_sysconfigdata__linux_x86_64-linux-gnu.py	41236	0644	edit dl rm
_threading_local.py	7220	0644	edit dl rm
_weakrefset.py	5923	0644	edit dl rm
__future__.py	5147	0644	edit dl rm
__phello__.foo.py	64	0644	edit dl rm

Edit: /usr/lib64/python3.9/weakref.py (21560B)

"""Weak reference support for Python.

This module is an implementation of PEP 205:

https://www.python.org/dev/peps/pep-0205/
"""

# Naming convention: Variables named "wr" are weak reference objects;
# they are called this instead of "ref" to avoid name collisions with
# the module-global ref() function imported from _weakref.

from _weakref import (
     getweakrefcount,
     getweakrefs,
     ref,
     proxy,
     CallableProxyType,
     ProxyType,
     ReferenceType,
     _remove_dead_weakref)

from _weakrefset import WeakSet, _IterationGuard

import _collections_abc  # Import after _weakref to avoid circular import.
import sys
import itertools

ProxyTypes = (ProxyType, CallableProxyType)

__all__ = ["ref", "proxy", "getweakrefcount", "getweakrefs",
           "WeakKeyDictionary", "ReferenceType", "ProxyType",
           "CallableProxyType", "ProxyTypes", "WeakValueDictionary",
           "WeakSet", "WeakMethod", "finalize"]

_collections_abc.Set.register(WeakSet)
_collections_abc.MutableSet.register(WeakSet)

class WeakMethod(ref):
    """
    A custom `weakref.ref` subclass which simulates a weak reference to
    a bound method, working around the lifetime problem of bound methods.
    """

__slots__ = "_func_ref", "_meth_type", "_alive", "__weakref__"

def __new__(cls, meth, callback=None):
        try:
            obj = meth.__self__
            func = meth.__func__
        except AttributeError:
            raise TypeError("argument should be a bound method, not {}"
                            .format(type(meth))) from None
        def _cb(arg):
            # The self-weakref trick is needed to avoid creating a reference
            # cycle.
            self = self_wr()
            if self._alive:
                self._alive = False
                if callback is not None:
                    callback(self)
        self = ref.__new__(cls, obj, _cb)
        self._func_ref = ref(func, _cb)
        self._meth_type = type(meth)
        self._alive = True
        self_wr = ref(self)
        return self

def __call__(self):
        obj = super().__call__()
        func = self._func_ref()
        if obj is None or func is None:
            return None
        return self._meth_type(func, obj)

def __eq__(self, other):
        if isinstance(other, WeakMethod):
            if not self._alive or not other._alive:
                return self is other
            return ref.__eq__(self, other) and self._func_ref == other._func_ref
        return NotImplemented

def __ne__(self, other):
        if isinstance(other, WeakMethod):
            if not self._alive or not other._alive:
                return self is not other
            return ref.__ne__(self, other) or self._func_ref != other._func_ref
        return NotImplemented

__hash__ = ref.__hash__

class WeakValueDictionary(_collections_abc.MutableMapping):
    """Mapping class that references values weakly.

Entries in the dictionary will be discarded when no strong
    reference to the value exists anymore
    """
    # We inherit the constructor without worrying about the input
    # dictionary; since it uses our .update() method, we get the right
    # checks (if the other dictionary is a WeakValueDictionary,
    # objects are unwrapped on the way out, and we always wrap on the
    # way in).

def __init__(self, other=(), /, **kw):
        def remove(wr, selfref=ref(self), _atomic_removal=_remove_dead_weakref):
            self = selfref()
            if self is not None:
                if self._iterating:
                    self._pending_removals.append(wr.key)
                else:
                    # Atomic removal is necessary since this function
                    # can be called asynchronously by the GC
                    _atomic_removal(self.data, wr.key)
        self._remove = remove
        # A list of keys to be removed
        self._pending_removals = []
        self._iterating = set()
        self.data = {}
        self.update(other, **kw)

def _commit_removals(self, _atomic_removal=_remove_dead_weakref):
        pop = self._pending_removals.pop
        d = self.data
        # We shouldn't encounter any KeyError, because this method should
        # always be called *before* mutating the dict.
        while True:
            try:
                key = pop()
            except IndexError:
                return
            _atomic_removal(d, key)

def __getitem__(self, key):
        if self._pending_removals:
            self._commit_removals()
        o = self.data[key]()
        if o is None:
            raise KeyError(key)
        else:
            return o

def __delitem__(self, key):
        if self._pending_removals:
            self._commit_removals()
        del self.data[key]

def __len__(self):
        if self._pending_removals:
            self._commit_removals()
        return len(self.data)

def __contains__(self, key):
        if self._pending_removals:
            self._commit_removals()
        try:
            o = self.data[key]()
        except KeyError:
            return False
        return o is not None

def __repr__(self):
        return "<%s at %#x>" % (self.__class__.__name__, id(self))

def __setitem__(self, key, value):
        if self._pending_removals:
            self._commit_removals()
        self.data[key] = KeyedRef(value, self._remove, key)

def copy(self):
        if self._pending_removals:
            self._commit_removals()
        new = WeakValueDictionary()
        with _IterationGuard(self):
            for key, wr in self.data.items():
                o = wr()
                if o is not None:
                    new[key] = o
        return new

__copy__ = copy

def __deepcopy__(self, memo):
        from copy import deepcopy
        if self._pending_removals:
            self._commit_removals()
        new = self.__class__()
        with _IterationGuard(self):
            for key, wr in self.data.items():
                o = wr()
                if o is not None:
                    new[deepcopy(key, memo)] = o
        return new

def get(self, key, default=None):
        if self._pending_removals:
            self._commit_removals()
        try:
            wr = self.data[key]
        except KeyError:
            return default
        else:
            o = wr()
            if o is None:
                # This should only happen
                return default
            else:
                return o

def items(self):
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            for k, wr in self.data.items():
                v = wr()
                if v is not None:
                    yield k, v

def keys(self):
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            for k, wr in self.data.items():
                if wr() is not None:
                    yield k

__iter__ = keys

def itervaluerefs(self):
        """Return an iterator that yields the weak references to the values.

The references are not guaranteed to be 'live' at the time
        they are used, so the result of calling the references needs
        to be checked before being used.  This can be used to avoid
        creating references that will cause the garbage collector to
        keep the values around longer than needed.

"""
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            yield from self.data.values()

def values(self):
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            for wr in self.data.values():
                obj = wr()
                if obj is not None:
                    yield obj

def popitem(self):
        if self._pending_removals:
            self._commit_removals()
        while True:
            key, wr = self.data.popitem()
            o = wr()
            if o is not None:
                return key, o

def pop(self, key, *args):
        if self._pending_removals:
            self._commit_removals()
        try:
            o = self.data.pop(key)()
        except KeyError:
            o = None
        if o is None:
            if args:
                return args[0]
            else:
                raise KeyError(key)
        else:
            return o

def setdefault(self, key, default=None):
        try:
            o = self.data[key]()
        except KeyError:
            o = None
        if o is None:
            if self._pending_removals:
                self._commit_removals()
            self.data[key] = KeyedRef(default, self._remove, key)
            return default
        else:
            return o

def update(self, other=None, /, **kwargs):
        if self._pending_removals:
            self._commit_removals()
        d = self.data
        if other is not None:
            if not hasattr(other, "items"):
                other = dict(other)
            for key, o in other.items():
                d[key] = KeyedRef(o, self._remove, key)
        for key, o in kwargs.items():
            d[key] = KeyedRef(o, self._remove, key)

def valuerefs(self):
        """Return a list of weak references to the values.

"""
        if self._pending_removals:
            self._commit_removals()
        return list(self.data.values())

def __ior__(self, other):
        self.update(other)
        return self

def __or__(self, other):
        if isinstance(other, _collections_abc.Mapping):
            c = self.copy()
            c.update(other)
            return c
        return NotImplemented

def __ror__(self, other):
        if isinstance(other, _collections_abc.Mapping):
            c = self.__class__()
            c.update(other)
            c.update(self)
            return c
        return NotImplemented

class KeyedRef(ref):
    """Specialized reference that includes a key corresponding to the value.

This is used in the WeakValueDictionary to avoid having to create
    a function object for each key stored in the mapping.  A shared
    callback object can use the 'key' attribute of a KeyedRef instead
    of getting a reference to the key from an enclosing scope.

"""

__slots__ = "key",

def __new__(type, ob, callback, key):
        self = ref.__new__(type, ob, callback)
        self.key = key
        return self

def __init__(self, ob, callback, key):
        super().__init__(ob, callback)

class WeakKeyDictionary(_collections_abc.MutableMapping):
    """ Mapping class that references keys weakly.

Entries in the dictionary will be discarded when there is no
    longer a strong reference to the key. This can be used to
    associate additional data with an object owned by other parts of
    an application without adding attributes to those objects. This
    can be especially useful with objects that override attribute
    accesses.
    """

def __init__(self, dict=None):
        self.data = {}
        def remove(k, selfref=ref(self)):
            self = selfref()
            if self is not None:
                if self._iterating:
                    self._pending_removals.append(k)
                else:
                    try:
                        del self.data[k]
                    except KeyError:
                        pass
        self._remove = remove
        # A list of dead weakrefs (keys to be removed)
        self._pending_removals = []
        self._iterating = set()
        self._dirty_len = False
        if dict is not None:
            self.update(dict)

def _commit_removals(self):
        # NOTE: We don't need to call this method before mutating the dict,
        # because a dead weakref never compares equal to a live weakref,
        # even if they happened to refer to equal objects.
        # However, it means keys may already have been removed.
        pop = self._pending_removals.pop
        d = self.data
        while True:
            try:
                key = pop()
            except IndexError:
                return

try:
                del d[key]
            except KeyError:
                pass

def _scrub_removals(self):
        d = self.data
        self._pending_removals = [k for k in self._pending_removals if k in d]
        self._dirty_len = False

def __delitem__(self, key):
        self._dirty_len = True
        del self.data[ref(key)]

def __getitem__(self, key):
        return self.data[ref(key)]

def __len__(self):
        if self._dirty_len and self._pending_removals:
            # self._pending_removals may still contain keys which were
            # explicitly removed, we have to scrub them (see issue #21173).
            self._scrub_removals()
        return len(self.data) - len(self._pending_removals)

def __repr__(self):
        return "<%s at %#x>" % (self.__class__.__name__, id(self))

def __setitem__(self, key, value):
        self.data[ref(key, self._remove)] = value

def copy(self):
        new = WeakKeyDictionary()
        with _IterationGuard(self):
            for key, value in self.data.items():
                o = key()
                if o is not None:
                    new[o] = value
        return new

__copy__ = copy

def __deepcopy__(self, memo):
        from copy import deepcopy
        new = self.__class__()
        with _IterationGuard(self):
            for key, value in self.data.items():
                o = key()
                if o is not None:
                    new[o] = deepcopy(value, memo)
        return new

def get(self, key, default=None):
        return self.data.get(ref(key),default)

def __contains__(self, key):
        try:
            wr = ref(key)
        except TypeError:
            return False
        return wr in self.data

def items(self):
        with _IterationGuard(self):
            for wr, value in self.data.items():
                key = wr()
                if key is not None:
                    yield key, value

def keys(self):
        with _IterationGuard(self):
            for wr in self.data:
                obj = wr()
                if obj is not None:
                    yield obj

__iter__ = keys

def values(self):
        with _IterationGuard(self):
            for wr, value in self.data.items():
                if wr() is not None:
                    yield value

def keyrefs(self):
        """Return a list of weak references to the keys.

"""
        return list(self.data)

def popitem(self):
        self._dirty_len = True
        while True:
            key, value = self.data.popitem()
            o = key()
            if o is not None:
                return o, value

def pop(self, key, *args):
        self._dirty_len = True
        return self.data.pop(ref(key), *args)

def setdefault(self, key, default=None):
        return self.data.setdefault(ref(key, self._remove),default)

def update(self, dict=None, /, **kwargs):
        d = self.data
        if dict is not None:
            if not hasattr(dict, "items"):
                dict = type({})(dict)
            for key, value in dict.items():
                d[ref(key, self._remove)] = value
        if len(kwargs):
            self.update(kwargs)

def __ior__(self, other):
        self.update(other)
        return self

def __or__(self, other):
        if isinstance(other, _collections_abc.Mapping):
            c = self.copy()
            c.update(other)
            return c
        return NotImplemented

class finalize:
    """Class for finalization of weakrefable objects

finalize(obj, func, *args, **kwargs) returns a callable finalizer
    object which will be called when obj is garbage collected. The
    first time the finalizer is called it evaluates func(*arg, **kwargs)
    and returns the result. After this the finalizer is dead, and
    calling it just returns None.

When the program exits any remaining finalizers for which the
    atexit attribute is true will be run in reverse order of creation.
    By default atexit is true.
    """

# Finalizer objects don't have any state of their own.  They are
    # just used as keys to lookup _Info objects in the registry.  This
    # ensures that they cannot be part of a ref-cycle.

__slots__ = ()
    _registry = {}
    _shutdown = False
    _index_iter = itertools.count()
    _dirty = False
    _registered_with_atexit = False

class _Info:
        __slots__ = ("weakref", "func", "args", "kwargs", "atexit", "index")

def __init__(self, obj, func, /, *args, **kwargs):
        if not self._registered_with_atexit:
            # We may register the exit function more than once because
            # of a thread race, but that is harmless
            import atexit
            atexit.register(self._exitfunc)
            finalize._registered_with_atexit = True
        info = self._Info()
        info.weakref = ref(obj, self)
        info.func = func
        info.args = args
        info.kwargs = kwargs or None
        info.atexit = True
        info.index = next(self._index_iter)
        self._registry[self] = info
        finalize._dirty = True

def __call__(self, _=None):
        """If alive then mark as dead and return func(*args, **kwargs);
        otherwise return None"""
        info = self._registry.pop(self, None)
        if info and not self._shutdown:
            return info.func(*info.args, **(info.kwargs or {}))

def detach(self):
        """If alive then mark as dead and return (obj, func, args, kwargs);
        otherwise return None"""
        info = self._registry.get(self)
        obj = info and info.weakref()
        if obj is not None and self._registry.pop(self, None):
            return (obj, info.func, info.args, info.kwargs or {})

def peek(self):
        """If alive then return (obj, func, args, kwargs);
        otherwise return None"""
        info = self._registry.get(self)
        obj = info and info.weakref()
        if obj is not None:
            return (obj, info.func, info.args, info.kwargs or {})

@property
    def alive(self):
        """Whether finalizer is alive"""
        return self in self._registry

@property
    def atexit(self):
        """Whether finalizer should be called at exit"""
        info = self._registry.get(self)
        return bool(info) and info.atexit

@atexit.setter
    def atexit(self, value):
        info = self._registry.get(self)
        if info:
            info.atexit = bool(value)

def __repr__(self):
        info = self._registry.get(self)
        obj = info and info.weakref()
        if obj is None:
            return '<%s object at %#x; dead>' % (type(self).__name__, id(self))
        else:
            return '<%s object at %#x; for %r at %#x>' % \
                (type(self).__name__, id(self), type(obj).__name__, id(obj))

@classmethod
    def _select_for_exit(cls):
        # Return live finalizers marked for exit, oldest first
        L = [(f,i) for (f,i) in cls._registry.items() if i.atexit]
        L.sort(key=lambda item:item[1].index)
        return [f for (f,i) in L]

@classmethod
    def _exitfunc(cls):
        # At shutdown invoke finalizers for which atexit is true.
        # This is called once all other non-daemonic threads have been
        # joined.
        reenable_gc = False
        try:
            if cls._registry:
                import gc
                if gc.isenabled():
                    reenable_gc = True
                    gc.disable()
                pending = None
                while True:
                    if pending is None or finalize._dirty:
                        pending = cls._select_for_exit()
                        finalize._dirty = False
                    if not pending:
                        break
                    f = pending.pop()
                    try:
                        # gc is disabled, so (assuming no daemonic
                        # threads) the following is the only line in
                        # this function which might trigger creation
                        # of a new finalizer
                        f()
                    except Exception:
                        sys.excepthook(*sys.exc_info())
                    assert f not in cls._registry
        finally:
            # prevent any more finalizers from executing during shutdown
            finalize._shutdown = True
            if reenable_gc:
                gc.enable()

cmd: