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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
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asyncio	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
collections	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
concurrent	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
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curses	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
dbm	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
email	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
encodings	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
ensurepip	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
html	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
http	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
idlelib	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
importlib	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
json	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
lib-dynload	[ DIR ]	drwxr-xr-x	2026-05-05 23:08
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multiprocessing	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
pathlib	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
pydoc_data	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
re	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
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tkinter	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
tomllib	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
turtledemo	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
unittest	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
urllib	[ DIR ]	drwxr-xr-x	2026-05-05 23:06
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LICENSE.txt	13.49 KB	-rw-r--r--	2026-02-03 21:23
__future__.py	5.1 KB	-rw-r--r--	2026-03-26 17:23
__hello__.py	227 B	-rw-r--r--	2026-03-26 17:23
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_threading_local.py	4.26 KB	-rw-r--r--	2026-03-26 17:22
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abc.py	6.38 KB	-rw-r--r--	2026-03-26 17:22
antigravity.py	500 B	-rw-r--r--	2026-03-26 17:22
argparse.py	100.51 KB	-rw-r--r--	2026-03-26 17:22
ast.py	63.81 KB	-rw-r--r--	2026-03-26 17:22
base64.py	21.54 KB	-rwxr-xr-x	2026-03-26 17:22
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calendar.py	25.47 KB	-rw-r--r--	2026-03-26 17:22
cmd.py	14.96 KB	-rw-r--r--	2026-03-26 17:22
code.py	12.86 KB	-rw-r--r--	2026-03-26 17:22
codecs.py	36.11 KB	-rw-r--r--	2026-03-26 17:22
codeop.py	5.69 KB	-rw-r--r--	2026-03-26 17:22
colorsys.py	3.97 KB	-rw-r--r--	2026-03-26 17:22
compileall.py	20.18 KB	-rw-r--r--	2026-03-26 17:22
configparser.py	52.57 KB	-rw-r--r--	2026-03-26 17:22
contextlib.py	27.15 KB	-rw-r--r--	2026-03-26 17:22
contextvars.py	129 B	-rw-r--r--	2026-03-26 17:22
copy.py	8.76 KB	-rw-r--r--	2026-03-26 17:22
copyreg.py	7.44 KB	-rw-r--r--	2026-03-26 17:22
csv.py	18.73 KB	-rw-r--r--	2026-03-26 17:22
dataclasses.py	63.03 KB	-rw-r--r--	2026-03-26 17:22
datetime.py	268 B	-rw-r--r--	2026-03-26 17:23
decimal.py	2.73 KB	-rw-r--r--	2026-03-26 17:22
difflib.py	81.41 KB	-rw-r--r--	2026-03-26 17:22
dis.py	40 KB	-rw-r--r--	2026-03-26 17:22
doctest.py	106.85 KB	-rw-r--r--	2026-03-26 17:22
enum.py	83.61 KB	-rw-r--r--	2026-03-26 17:22
filecmp.py	10.4 KB	-rw-r--r--	2026-03-26 17:22
fileinput.py	15.35 KB	-rw-r--r--	2026-03-26 17:22
fnmatch.py	6.04 KB	-rw-r--r--	2026-03-26 17:22
fractions.py	39.15 KB	-rw-r--r--	2026-03-26 17:22
ftplib.py	33.92 KB	-rw-r--r--	2026-03-26 17:22
functools.py	38.15 KB	-rw-r--r--	2026-03-26 17:23
genericpath.py	6.1 KB	-rw-r--r--	2026-03-26 17:23
getopt.py	7.31 KB	-rw-r--r--	2026-03-26 17:22
getpass.py	6.09 KB	-rw-r--r--	2026-03-26 17:22
gettext.py	21.03 KB	-rw-r--r--	2026-03-26 17:22
glob.py	19.44 KB	-rw-r--r--	2026-03-26 17:22
graphlib.py	9.42 KB	-rw-r--r--	2026-03-26 17:22
gzip.py	24.06 KB	-rw-r--r--	2026-03-26 17:22
hashlib.py	9.22 KB	-rw-r--r--	2026-03-26 17:22
heapq.py	22.48 KB	-rw-r--r--	2026-03-26 17:22
hmac.py	7.58 KB	-rw-r--r--	2026-03-26 17:22
imaplib.py	53.07 KB	-rw-r--r--	2026-03-26 17:22
inspect.py	125.78 KB	-rw-r--r--	2026-03-26 17:22
io.py	3.5 KB	-rw-r--r--	2026-03-26 17:22
ipaddress.py	79.74 KB	-rw-r--r--	2026-03-26 17:22
keyword.py	1.05 KB	-rw-r--r--	2026-03-26 17:22
linecache.py	7.31 KB	-rw-r--r--	2026-03-26 17:22
locale.py	77.18 KB	-rw-r--r--	2026-03-26 17:22
lzma.py	13.08 KB	-rw-r--r--	2026-03-26 17:22
mailbox.py	79.62 KB	-rw-r--r--	2026-03-26 17:22
mimetypes.py	23.29 KB	-rw-r--r--	2026-03-26 17:22
modulefinder.py	23.23 KB	-rw-r--r--	2026-03-26 17:22
netrc.py	6.87 KB	-rw-r--r--	2026-03-26 17:22
ntpath.py	30.16 KB	-rw-r--r--	2026-03-26 17:22
nturl2path.py	2.32 KB	-rw-r--r--	2026-03-26 17:22
numbers.py	11.49 KB	-rw-r--r--	2026-03-26 17:22
opcode.py	2.76 KB	-rw-r--r--	2026-03-26 17:23
operator.py	10.72 KB	-rw-r--r--	2026-03-26 17:22
optparse.py	58.95 KB	-rw-r--r--	2026-03-26 17:22
os.py	40.65 KB	-rw-r--r--	2026-03-26 17:22
pdb.py	90.37 KB	-rwxr-xr-x	2026-03-26 17:22
pickle.py	65.39 KB	-rw-r--r--	2026-03-26 17:22
pickletools.py	91.85 KB	-rw-r--r--	2026-03-26 17:22
pkgutil.py	17.85 KB	-rw-r--r--	2026-03-26 17:22
platform.py	46.25 KB	-rwxr-xr-x	2026-03-26 17:22
plistlib.py	29.32 KB	-rw-r--r--	2026-03-26 17:22
poplib.py	14.26 KB	-rw-r--r--	2026-03-26 17:22
posixpath.py	17.81 KB	-rw-r--r--	2026-03-26 17:22
pprint.py	23.59 KB	-rw-r--r--	2026-03-26 17:22
profile.py	22.61 KB	-rwxr-xr-x	2026-03-26 17:22
pstats.py	28.61 KB	-rw-r--r--	2026-03-26 17:22
pty.py	5.99 KB	-rw-r--r--	2026-03-26 17:22
py_compile.py	7.65 KB	-rw-r--r--	2026-03-26 17:22
pyclbr.py	11.13 KB	-rw-r--r--	2026-03-26 17:22
pydoc.py	107.91 KB	-rwxr-xr-x	2026-03-26 17:22
queue.py	13.14 KB	-rw-r--r--	2026-03-26 17:22
quopri.py	7.03 KB	-rwxr-xr-x	2026-03-26 17:22
random.py	36.14 KB	-rw-r--r--	2026-03-26 17:22
reprlib.py	7.88 KB	-rw-r--r--	2026-03-26 17:22
rlcompleter.py	7.73 KB	-rw-r--r--	2026-03-26 17:23
runpy.py	12.58 KB	-rw-r--r--	2026-03-26 17:22
sched.py	6.2 KB	-rw-r--r--	2026-03-26 17:22
secrets.py	1.94 KB	-rw-r--r--	2026-03-26 17:22
selectors.py	19 KB	-rw-r--r--	2026-03-26 17:22
shelve.py	8.6 KB	-rw-r--r--	2026-03-26 17:22
shlex.py	13.04 KB	-rw-r--r--	2026-03-26 17:22
shutil.py	56.12 KB	-rw-r--r--	2026-03-26 17:22
signal.py	2.44 KB	-rw-r--r--	2026-03-26 17:22
site.py	24.96 KB	-rw-r--r--	2026-03-26 17:22
smtplib.py	42.9 KB	-rwxr-xr-x	2026-03-26 17:22
socket.py	36.87 KB	-rw-r--r--	2026-03-26 17:22
socketserver.py	27.41 KB	-rw-r--r--	2026-03-26 17:23
sre_compile.py	231 B	-rw-r--r--	2026-03-26 17:22
sre_constants.py	232 B	-rw-r--r--	2026-03-26 17:22
sre_parse.py	229 B	-rw-r--r--	2026-03-26 17:22
ssl.py	51.47 KB	-rw-r--r--	2026-03-26 17:22
stat.py	6.16 KB	-rw-r--r--	2026-03-26 17:22
statistics.py	60.72 KB	-rw-r--r--	2026-03-26 17:22
string.py	11.51 KB	-rw-r--r--	2026-03-26 17:22
stringprep.py	12.61 KB	-rw-r--r--	2026-03-26 17:22
struct.py	257 B	-rw-r--r--	2026-03-26 17:22
subprocess.py	88.7 KB	-rw-r--r--	2026-03-26 17:22
symtable.py	13.87 KB	-rw-r--r--	2026-03-26 17:22
tabnanny.py	11.27 KB	-rwxr-xr-x	2026-03-26 17:22
tarfile.py	111.74 KB	-rwxr-xr-x	2026-03-26 17:22
tempfile.py	31.65 KB	-rw-r--r--	2026-03-26 17:22
textwrap.py	19.49 KB	-rw-r--r--	2026-03-26 17:22
this.py	1003 B	-rw-r--r--	2026-03-26 17:22
threading.py	54.05 KB	-rw-r--r--	2026-03-26 17:22
timeit.py	13.16 KB	-rwxr-xr-x	2026-03-26 17:22
token.py	2.43 KB	-rw-r--r--	2026-03-26 17:22
tokenize.py	21.06 KB	-rw-r--r--	2026-03-26 17:22
trace.py	29.03 KB	-rwxr-xr-x	2026-03-26 17:22
traceback.py	65 KB	-rw-r--r--	2026-03-26 17:22
tracemalloc.py	17.62 KB	-rw-r--r--	2026-03-26 17:22
tty.py	1.99 KB	-rw-r--r--	2026-03-26 17:22
turtle.py	142.99 KB	-rw-r--r--	2026-03-26 17:22
types.py	11.06 KB	-rw-r--r--	2026-03-26 17:22
typing.py	130.14 KB	-rw-r--r--	2026-03-26 17:22
uuid.py	28.77 KB	-rw-r--r--	2026-03-26 17:22
warnings.py	26.44 KB	-rw-r--r--	2026-03-26 17:22
wave.py	22.71 KB	-rw-r--r--	2026-03-26 17:22
weakref.py	21.01 KB	-rw-r--r--	2026-03-26 17:22
webbrowser.py	23.73 KB	-rwxr-xr-x	2026-03-26 17:22
zipapp.py	8.42 KB	-rw-r--r--	2026-03-26 17:22
zipimport.py	32.12 KB	-rw-r--r--	2026-03-26 17:22

Rename

"""Thread-local objects.

(Note that this module provides a Python version of the threading.local
 class.  Depending on the version of Python you're using, there may be a
 faster one available.  You should always import the `local` class from
 `threading`.)
"""

from weakref import ref
from contextlib import contextmanager

__all__ = ["local"]

# We need to use objects from the threading module, but the threading
# module may also want to use our `local` class, if support for locals
# isn't compiled in to the `thread` module.  This creates potential problems
# with circular imports.  For that reason, we don't import `threading`
# until the bottom of this file (a hack sufficient to worm around the
# potential problems).  Note that all platforms on CPython do have support
# for locals in the `thread` module, and there is no circular import problem
# then, so problems introduced by fiddling the order of imports here won't
# manifest.

class _localimpl:
    """A class managing thread-local dicts"""
    __slots__ = 'key', 'dicts', 'localargs', 'locallock', '__weakref__'

def __init__(self):
        # The key used in the Thread objects' attribute dicts.
        # We keep it a string for speed but make it unlikely to clash with
        # a "real" attribute.
        self.key = '_threading_local._localimpl.' + str(id(self))
        # { id(Thread) -> (ref(Thread), thread-local dict) }
        self.dicts = {}

def get_dict(self):
        """Return the dict for the current thread. Raises KeyError if none
        defined."""
        thread = current_thread()
        return self.dicts[id(thread)][1]

def create_dict(self):
        """Create a new dict for the current thread, and return it."""
        localdict = {}
        key = self.key
        thread = current_thread()
        idt = id(thread)
        def local_deleted(_, key=key):
            # When the localimpl is deleted, remove the thread attribute.
            thread = wrthread()
            if thread is not None:
                del thread.__dict__[key]
        def thread_deleted(_, idt=idt):
            # When the thread is deleted, remove the local dict.
            # Note that this is suboptimal if the thread object gets
            # caught in a reference loop. We would like to be called
            # as soon as the OS-level thread ends instead.
            local = wrlocal()
            if local is not None:
                dct = local.dicts.pop(idt)
        wrlocal = ref(self, local_deleted)
        wrthread = ref(thread, thread_deleted)
        thread.__dict__[key] = wrlocal
        self.dicts[idt] = wrthread, localdict
        return localdict

@contextmanager
def _patch(self):
    impl = object.__getattribute__(self, '_local__impl')
    try:
        dct = impl.get_dict()
    except KeyError:
        dct = impl.create_dict()
        args, kw = impl.localargs
        self.__init__(*args, **kw)
    with impl.locallock:
        object.__setattr__(self, '__dict__', dct)
        yield

class local:
    __slots__ = '_local__impl', '__dict__'

def __new__(cls, /, *args, **kw):
        if (args or kw) and (cls.__init__ is object.__init__):
            raise TypeError("Initialization arguments are not supported")
        self = object.__new__(cls)
        impl = _localimpl()
        impl.localargs = (args, kw)
        impl.locallock = RLock()
        object.__setattr__(self, '_local__impl', impl)
        # We need to create the thread dict in anticipation of
        # __init__ being called, to make sure we don't call it
        # again ourselves.
        impl.create_dict()
        return self

def __getattribute__(self, name):
        with _patch(self):
            return object.__getattribute__(self, name)

def __setattr__(self, name, value):
        if name == '__dict__':
            raise AttributeError(
                "%r object attribute '__dict__' is read-only"
                % self.__class__.__name__)
        with _patch(self):
            return object.__setattr__(self, name, value)

def __delattr__(self, name):
        if name == '__dict__':
            raise AttributeError(
                "%r object attribute '__dict__' is read-only"
                % self.__class__.__name__)
        with _patch(self):
            return object.__delattr__(self, name)

from threading import current_thread, RLock