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  $   ˆl–Ãa¾”d*j"TÚzã@¸Ø”Å£À„¯¸Ï¿ÃÂ ?÷     """Temporary files.

This module provides generic, low- and high-level interfaces for
creating temporary files and directories.  All of the interfaces
provided by this module can be used without fear of race conditions
except for 'mktemp'.  'mktemp' is subject to race conditions and
should not be used; it is provided for backward compatibility only.

The default path names are returned as str.  If you supply bytes as
input, all return values will be in bytes.  Ex:

    >>> tempfile.mkstemp()
    (4, '/tmp/tmptpu9nin8')
    >>> tempfile.mkdtemp(suffix=b'')
    b'/tmp/tmppbi8f0hy'

This module also provides some data items to the user:

  TMP_MAX  - maximum number of names that will be tried before
             giving up.
  tempdir  - If this is set to a string before the first use of
             any routine from this module, it will be considered as
             another candidate location to store temporary files.
"""

__all__ = [
    "NamedTemporaryFile", "TemporaryFile", # high level safe interfaces
    "SpooledTemporaryFile", "TemporaryDirectory",
    "mkstemp", "mkdtemp",                  # low level safe interfaces
    "mktemp",                              # deprecated unsafe interface
    "TMP_MAX", "gettempprefix",            # constants
    "tempdir", "gettempdir",
    "gettempprefixb", "gettempdirb",
   ]


# Imports.

import functools as _functools
import warnings as _warnings
import io as _io
import os as _os
import shutil as _shutil
import errno as _errno
from random import Random as _Random
import sys as _sys
import types as _types
import weakref as _weakref
import _thread
_allocate_lock = _thread.allocate_lock

_text_openflags = _os.O_RDWR | _os.O_CREAT | _os.O_EXCL
if hasattr(_os, 'O_NOFOLLOW'):
    _text_openflags |= _os.O_NOFOLLOW

_bin_openflags = _text_openflags
if hasattr(_os, 'O_BINARY'):
    _bin_openflags |= _os.O_BINARY

if hasattr(_os, 'TMP_MAX'):
    TMP_MAX = _os.TMP_MAX
else:
    TMP_MAX = 10000

# This variable _was_ unused for legacy reasons, see issue 10354.
# But as of 3.5 we actually use it at runtime so changing it would
# have a possibly desirable side effect...  But we do not want to support
# that as an API.  It is undocumented on purpose.  Do not depend on this.
template = "tmp"

# Internal routines.

_once_lock = _allocate_lock()


def _exists(fn):
    try:
        _os.lstat(fn)
    except OSError:
        return False
    else:
        return True


def _infer_return_type(*args):
    """Look at the type of all args and divine their implied return type."""
    return_type = None
    for arg in args:
        if arg is None:
            continue

        if isinstance(arg, _os.PathLike):
            arg = _os.fspath(arg)

        if isinstance(arg, bytes):
            if return_type is str:
                raise TypeError("Can't mix bytes and non-bytes in "
                                "path components.")
            return_type = bytes
        else:
            if return_type is bytes:
                raise TypeError("Can't mix bytes and non-bytes in "
                                "path components.")
            return_type = str
    if return_type is None:
        return str  # tempfile APIs return a str by default.
    return return_type


def _sanitize_params(prefix, suffix, dir):
    """Common parameter processing for most APIs in this module."""
    output_type = _infer_return_type(prefix, suffix, dir)
    if suffix is None:
        suffix = output_type()
    if prefix is None:
        if output_type is str:
            prefix = template
        else:
            prefix = _os.fsencode(template)
    if dir is None:
        if output_type is str:
            dir = gettempdir()
        else:
            dir = gettempdirb()
    return prefix, suffix, dir, output_type


class _RandomNameSequence:
    """An instance of _RandomNameSequence generates an endless
    sequence of unpredictable strings which can safely be incorporated
    into file names.  Each string is eight characters long.  Multiple
    threads can safely us