FM / python3.6

/snap/core18/2999/usr/lib/python3.6

Name	Size	Mode	Actions
asyncio/	-	0755	rm
collections/	-	0755	rm
concurrent/	-	0755	rm
ctypes/	-	0755	rm
curses/	-	0755	rm
dbm/	-	0755	rm
distutils/	-	0755	rm
email/	-	0755	rm
encodings/	-	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
sqlite3/	-	0755	rm
test/	-	0755	rm
unittest/	-	0755	rm
urllib/	-	0755	rm
venv/	-	0755	rm
wsgiref/	-	0755	rm
xml/	-	0755	rm
xmlrpc/	-	0755	rm
__pycache__/	-	0755	rm
abc.py	8727	0644	edit dl rm
aifc.py	32454	0644	edit dl rm
antigravity.py	477	0644	edit dl rm
argparse.py	90568	0644	edit dl rm
ast.py	12166	0644	edit dl rm
asynchat.py	11328	0644	edit dl rm
asyncore.py	20159	0644	edit dl rm
base64.py	20378	0755	edit dl rm
bdb.py	23556	0644	edit dl rm
binhex.py	13954	0644	edit dl rm
bisect.py	2595	0644	edit dl rm
bz2.py	12478	0644	edit dl rm
calendar.py	23213	0644	edit dl rm
cgi.py	36791	0755	edit dl rm
cgitb.py	12018	0644	edit dl rm
chunk.py	5425	0644	edit dl rm
cmd.py	14860	0644	edit dl rm
code.py	10614	0644	edit dl rm
codecs.py	36276	0644	edit dl rm
codeop.py	5994	0644	edit dl rm
colorsys.py	4064	0644	edit dl rm
compileall.py	12125	0644	edit dl rm
configparser.py	53592	0644	edit dl rm
contextlib.py	13162	0644	edit dl rm
copy.py	8815	0644	edit dl rm
copyreg.py	7007	0644	edit dl rm
cProfile.py	5370	0755	edit dl rm
crypt.py	1864	0644	edit dl rm
csv.py	16180	0644	edit dl rm
datetime.py	82034	0644	edit dl rm
decimal.py	320	0644	edit dl rm
difflib.py	84377	0644	edit dl rm
dis.py	18132	0644	edit dl rm
doctest.py	104391	0644	edit dl rm
dummy_threading.py	2815	0644	edit dl rm
enum.py	33606	0644	edit dl rm
filecmp.py	9830	0644	edit dl rm
fileinput.py	14471	0644	edit dl rm
fnmatch.py	3166	0644	edit dl rm
formatter.py	15143	0644	edit dl rm
fractions.py	23639	0644	edit dl rm
ftplib.py	35617	0644	edit dl rm
functools.py	31346	0644	edit dl rm
genericpath.py	4756	0644	edit dl rm
getopt.py	7489	0644	edit dl rm
getpass.py	5994	0644	edit dl rm
gettext.py	21957	0644	edit dl rm
glob.py	5638	0644	edit dl rm
gzip.py	20334	0644	edit dl rm
hashlib.py	9533	0644	edit dl rm
heapq.py	22929	0644	edit dl rm
hmac.py	5057	0644	edit dl rm
imaplib.py	53295	0644	edit dl rm
imghdr.py	3795	0644	edit dl rm
imp.py	10669	0644	edit dl rm
inspect.py	116958	0644	edit dl rm
io.py	3517	0644	edit dl rm
ipaddress.py	74563	0644	edit dl rm
keyword.py	2209	0755	edit dl rm
LICENSE.txt	12769	0644	edit dl rm
linecache.py	5312	0644	edit dl rm
locale.py	77304	0644	edit dl rm
lzma.py	12983	0644	edit dl rm
macpath.py	5971	0644	edit dl rm
macurl2path.py	2732	0644	edit dl rm
mailbox.py	78624	0644	edit dl rm
mailcap.py	9067	0644	edit dl rm
mimetypes.py	21042	0644	edit dl rm
modulefinder.py	23027	0644	edit dl rm
netrc.py	5684	0644	edit dl rm
nntplib.py	43078	0644	edit dl rm
ntpath.py	21174	0644	edit dl rm
nturl2path.py	2444	0644	edit dl rm
numbers.py	10243	0644	edit dl rm
opcode.py	5822	0644	edit dl rm
operator.py	10863	0644	edit dl rm
optparse.py	60371	0644	edit dl rm
os.py	37526	0644	edit dl rm
pathlib.py	48982	0644	edit dl rm
pdb.py	61310	0755	edit dl rm
pickle.py	55691	0644	edit dl rm
pickletools.py	91775	0644	edit dl rm
pipes.py	8916	0644	edit dl rm
pkgutil.py	21315	0644	edit dl rm
platform.py	48198	0755	edit dl rm
plistlib.py	32787	0644	edit dl rm
poplib.py	14964	0644	edit dl rm
posixpath.py	15645	0644	edit dl rm
pprint.py	20860	0644	edit dl rm
profile.py	22019	0755	edit dl rm
pstats.py	26564	0644	edit dl rm
pty.py	4763	0644	edit dl rm
pyclbr.py	13558	0644	edit dl rm
pydoc.py	103818	0755	edit dl rm
py_compile.py	7181	0644	edit dl rm
queue.py	8780	0644	edit dl rm
quopri.py	7252	0755	edit dl rm
random.py	27442	0644	edit dl rm
re.py	15552	0644	edit dl rm
reprlib.py	5336	0644	edit dl rm
rlcompleter.py	7097	0644	edit dl rm
runpy.py	11959	0644	edit dl rm
sched.py	6511	0644	edit dl rm
secrets.py	2038	0644	edit dl rm
selectors.py	19438	0644	edit dl rm
shelve.py	8515	0644	edit dl rm
shlex.py	12956	0644	edit dl rm
shutil.py	40540	0644	edit dl rm
signal.py	2123	0644	edit dl rm
site.py	21766	0644	edit dl rm
sitecustomize.py	-	0	edit dl rm
smtpd.py	34709	0755	edit dl rm
smtplib.py	44208	0755	edit dl rm
sndhdr.py	7088	0644	edit dl rm
socket.py	27443	0644	edit dl rm
socketserver.py	27010	0644	edit dl rm
sre_compile.py	19338	0644	edit dl rm
sre_constants.py	6821	0644	edit dl rm
sre_parse.py	36536	0644	edit dl rm
ssl.py	46400	0644	edit dl rm
stat.py	5038	0644	edit dl rm
statistics.py	20673	0644	edit dl rm
string.py	11795	0644	edit dl rm
stringprep.py	12917	0644	edit dl rm
struct.py	257	0644	edit dl rm
subprocess.py	62339	0644	edit dl rm
sunau.py	18095	0644	edit dl rm
symbol.py	2109	0755	edit dl rm
symtable.py	7277	0644	edit dl rm
sysconfig.py	25057	0644	edit dl rm
tabnanny.py	11401	0755	edit dl rm
tarfile.py	94969	0755	edit dl rm
telnetlib.py	23136	0644	edit dl rm
tempfile.py	31867	0644	edit dl rm
textwrap.py	19558	0644	edit dl rm
this.py	1003	0644	edit dl rm
threading.py	49029	0644	edit dl rm
timeit.py	13332	0755	edit dl rm
token.py	3075	0644	edit dl rm
tokenize.py	29496	0644	edit dl rm
trace.py	28723	0755	edit dl rm
traceback.py	23458	0644	edit dl rm
tracemalloc.py	16658	0644	edit dl rm
tty.py	879	0644	edit dl rm
turtle.py	143620	0644	edit dl rm
types.py	8870	0644	edit dl rm
typing.py	80274	0644	edit dl rm
uu.py	6753	0755	edit dl rm
uuid.py	23971	0644	edit dl rm
warnings.py	18488	0644	edit dl rm
wave.py	17709	0644	edit dl rm
weakref.py	20466	0644	edit dl rm
webbrowser.py	21757	0755	edit dl rm
xdrlib.py	5913	0644	edit dl rm
zipapp.py	7157	0644	edit dl rm
zipfile.py	78184	0644	edit dl rm
_bootlocale.py	1301	0644	edit dl rm
_collections_abc.py	26392	0644	edit dl rm
_compat_pickle.py	8749	0644	edit dl rm
_compression.py	5340	0644	edit dl rm
_dummy_thread.py	5118	0644	edit dl rm
_markupbase.py	14598	0644	edit dl rm
_osx_support.py	19119	0644	edit dl rm
_pydecimal.py	230228	0644	edit dl rm
_pyio.py	88097	0644	edit dl rm
_sitebuiltins.py	3115	0644	edit dl rm
_strptime.py	24747	0644	edit dl rm
_sysconfigdata_m_linux_x86_64-linux-gnu.py	22325	0644	edit dl rm
_threading_local.py	7214	0644	edit dl rm
_weakrefset.py	5705	0644	edit dl rm
__future__.py	4841	0644	edit dl rm
__phello__.foo.py	64	0644	edit dl rm

Edit: /snap/core18/2999/usr/lib/python3.6/tempfile.py (31867B)

"""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
try:
  import shutil as _shutil
  _rmtree = _shutil.rmtree
except ImportError:
  import sys as _sys
  import stat as _stat
  # version vulnerable to race conditions
  def _rmtree_unsafe(path, onerror):
    try:
        if _os.path.islink(path):
            # symlinks to directories are forbidden, see bug #1669
            raise OSError("Cannot call rmtree on a symbolic link")
    except OSError:
        onerror(_os.path.islink, path, _sys.exc_info())
        # can't continue even if onerror hook returns
        return
    names = []
    try:
        names = _os.listdir(path)
    except OSError:
        onerror(_os.listdir, path, _sys.exc_info())
    for name in names:
        fullname = _os.path.join(path, name)
        try:
            mode = _os.lstat(fullname).st_mode
        except OSError:
            mode = 0
        if _stat.S_ISDIR(mode):
            _rmtree_unsafe(fullname, onerror)
        else:
            try:
                _os.unlink(fullname)
            except OSError:
                onerror(_os.unlink, fullname, _sys.exc_info())
    try:
        _os.rmdir(path)
    except OSError:
        onerror(_os.rmdir, path, _sys.exc_info())

# Version using fd-based APIs to protect against races
  def _rmtree_safe_fd(topfd, path, onerror):
    names = []
    try:
        names = _os.listdir(topfd)
    except OSError as err:
        err.filename = path
        onerror(_os.listdir, path, _sys.exc_info())
    for name in names:
        fullname = _os.path.join(path, name)
        try:
            orig_st = _os.stat(name, dir_fd=topfd, follow_symlinks=False)
            mode = orig_st.st_mode
        except OSError:
            mode = 0
        if _stat.S_ISDIR(mode):
            try:
                dirfd = _os.open(name, _os.O_RDONLY, dir_fd=topfd)
            except OSError:
                onerror(_os.open, fullname, _sys.exc_info())
            else:
                try:
                    if _os.path.samestat(orig_st, _os.fstat(dirfd)):
                        _rmtree_safe_fd(dirfd, fullname, onerror)
                        try:
                            _os.rmdir(name, dir_fd=topfd)
                        except OSError:
                            onerror(_os.rmdir, fullname, _sys.exc_info())
                    else:
                        try:
                            # This can only happen if someone replaces
                            # a directory with a symlink after the call to
                            # stat.S_ISDIR above.
                            raise OSError("Cannot call rmtree on a symbolic "
                                          "link")
                        except OSError:
                            onerror(_os.path.islink, fullname, _sys.exc_info())
                finally:
                    _os.close(dirfd)
        else:
            try:
                _os.unlink(name, dir_fd=topfd)
            except OSError:
                onerror(_os.unlink, fullname, _sys.exc_info())

_use_fd_functions = ({_os.open, _os.stat, _os.unlink, _os.rmdir} <=
                     _os.supports_dir_fd and
                     _os.listdir in _os.supports_fd and
                     _os.stat in _os.supports_follow_symlinks)

def _rmtree(path, ignore_errors=False, onerror=None):
    """Recursively delete a directory tree.

If ignore_errors is set, errors are ignored; otherwise, if onerror
    is set, it is called to handle the error with arguments (func,
    path, exc_info) where func is platform and implementation dependent;
    path is the argument to that function that caused it to fail; and
    exc_info is a tuple returned by sys.exc_info().  If ignore_errors
    is false and onerror is None, an exception is raised.

"""
    if ignore_errors:
        def onerror(*args):
            pass
    elif onerror is None:
        def onerror(*args):
            raise
    if _use_fd_functions:
        # While the unsafe rmtree works fine on bytes, the fd based does not.
        if isinstance(path, bytes):
            path = _os.fsdecode(path)
        # Note: To guard against symlink races, we use the standard
        # lstat()/open()/fstat() trick.
        try:
            orig_st = _os.lstat(path)
        except Exception:
            onerror(_os.lstat, path, _sys.exc_info())
            return
        try:
            fd = _os.open(path, _os.O_RDONLY)
        except Exception:
            onerror(_os.lstat, path, _sys.exc_info())
            return
        try:
            if _os.path.samestat(orig_st, _os.fstat(fd)):
                _rmtree_safe_fd(fd, path, onerror)
                try:
                    _os.rmdir(path)
                except OSError:
                    onerror(_os.rmdir, path, _sys.exc_info())
            else:
                try:
                    # symlinks to directories are forbidden, see bug #1669
                    raise OSError("Cannot call rmtree on a symbolic link")
                except OSError:
                    onerror(_os.path.islink, path, _sys.exc_info())
        finally:
            _os.close(fd)
    else:
        return _rmtree_unsafe(path, onerror)

import errno as _errno
from random import Random as _Random
import weakref as _weakref

try:
    import _thread
except ImportError:
    import _dummy_thread as _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()

if hasattr(_os, "lstat"):
    _stat = _os.lstat
elif hasattr(_os, "stat"):
    _stat = _os.stat
else:
    # Fallback.  All we need is something that raises OSError if the
    # file doesn't exist.
    def _stat(fn):
        fd = _os.open(fn, _os.O_RDONLY)
        _os.close(fd)

def _exists(fn):
    try:
        _stat(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, 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 use the same instance at the same time.

_RandomNameSequence is an iterator."""

characters = "abcdefghijklmnopqrstuvwxyz0123456789_"

@property
    def rng(self):
        cur_pid = _os.getpid()
        if cur_pid != getattr(self, '_rng_pid', None):
            self._rng = _Random()
            self._rng_pid = cur_pid
        return self._rng

def __iter__(self):
        return self

def __next__(self):
        c = self.characters
        choose = self.rng.choice
        letters = [choose(c) for dummy in range(8)]
        return ''.join(letters)

def _candidate_tempdir_list():
    """Generate a list of candidate temporary directories which
    _get_default_tempdir will try."""

dirlist = []

# First, try the environment.
    for envname in 'TMPDIR', 'TEMP', 'TMP':
        dirname = _os.getenv(envname)
        if dirname: dirlist.append(dirname)

# Failing that, try OS-specific locations.
    if _os.name == 'nt':
        dirlist.extend([ _os.path.expanduser(r'~\AppData\Local\Temp'),
                         _os.path.expandvars(r'%SYSTEMROOT%\Temp'),
                         r'c:\temp', r'c:\tmp', r'\temp', r'\tmp' ])
    else:
        dirlist.extend([ '/tmp', '/var/tmp', '/usr/tmp' ])

# As a last resort, the current directory.
    try:
        dirlist.append(_os.getcwd())
    except (AttributeError, OSError):
        dirlist.append(_os.curdir)

return dirlist

def _get_default_tempdir():
    """Calculate the default directory to use for temporary files.
    This routine should be called exactly once.

We determine whether or not a candidate temp dir is usable by
    trying to create and write to a file in that directory.  If this
    is successful, the test file is deleted.  To prevent denial of
    service, the name of the test file must be randomized."""

namer = _RandomNameSequence()
    dirlist = _candidate_tempdir_list()

for dir in dirlist:
        if dir != _os.curdir:
            dir = _os.path.abspath(dir)
        # Try only a few names per directory.
        for seq in range(100):
            name = next(namer)
            filename = _os.path.join(dir, name)
            try:
                fd = _os.open(filename, _bin_openflags, 0o600)
                try:
                    try:
                        with _io.open(fd, 'wb', closefd=False) as fp:
                            fp.write(b'blat')
                    finally:
                        _os.close(fd)
                finally:
                    _os.unlink(filename)
                return dir
            except FileExistsError:
                pass
            except PermissionError:
                # This exception is thrown when a directory with the chosen name
                # already exists on windows.
                if (_os.name == 'nt' and _os.path.isdir(dir) and
                    _os.access(dir, _os.W_OK)):
                    continue
                break   # no point trying more names in this directory
            except OSError:
                break   # no point trying more names in this directory
    raise FileNotFoundError(_errno.ENOENT,
                            "No usable temporary directory found in %s" %
                            dirlist)

_name_sequence = None

def _get_candidate_names():
    """Common setup sequence for all user-callable interfaces."""

global _name_sequence
    if _name_sequence is None:
        _once_lock.acquire()
        try:
            if _name_sequence is None:
                _name_sequence = _RandomNameSequence()
        finally:
            _once_lock.release()
    return _name_sequence

def _mkstemp_inner(dir, pre, suf, flags, output_type):
    """Code common to mkstemp, TemporaryFile, and NamedTemporaryFile."""

names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, pre + name + suf)
        try:
            fd = _os.open(file, flags, 0o600)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return (fd, _os.path.abspath(file))

raise FileExistsError(_errno.EEXIST,
                          "No usable temporary file name found")

# User visible interfaces.

def gettempprefix():
    """The default prefix for temporary directories."""
    return template

def gettempprefixb():
    """The default prefix for temporary directories as bytes."""
    return _os.fsencode(gettempprefix())

tempdir = None

def gettempdir():
    """Accessor for tempfile.tempdir."""
    global tempdir
    if tempdir is None:
        _once_lock.acquire()
        try:
            if tempdir is None:
                tempdir = _get_default_tempdir()
        finally:
            _once_lock.release()
    return tempdir

def gettempdirb():
    """A bytes version of tempfile.gettempdir()."""
    return _os.fsencode(gettempdir())

def mkstemp(suffix=None, prefix=None, dir=None, text=False):
    """User-callable function to create and return a unique temporary
    file.  The return value is a pair (fd, name) where fd is the
    file descriptor returned by os.open, and name is the filename.

If 'suffix' is not None, the file name will end with that suffix,
    otherwise there will be no suffix.

If 'prefix' is not None, the file name will begin with that prefix,
    otherwise a default prefix is used.

If 'dir' is not None, the file will be created in that directory,
    otherwise a default directory is used.

If 'text' is specified and true, the file is opened in text
    mode.  Else (the default) the file is opened in binary mode.  On
    some operating systems, this makes no difference.

If any of 'suffix', 'prefix' and 'dir' are not None, they must be the
    same type.  If they are bytes, the returned name will be bytes; str
    otherwise.

The file is readable and writable only by the creating user ID.
    If the operating system uses permission bits to indicate whether a
    file is executable, the file is executable by no one. The file
    descriptor is not inherited by children of this process.

Caller is responsible for deleting the file when done with it.
    """

prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

if text:
        flags = _text_openflags
    else:
        flags = _bin_openflags

return _mkstemp_inner(dir, prefix, suffix, flags, output_type)

def mkdtemp(suffix=None, prefix=None, dir=None):
    """User-callable function to create and return a unique temporary
    directory.  The return value is the pathname of the directory.

Arguments are as for mkstemp, except that the 'text' argument is
    not accepted.

The directory is readable, writable, and searchable only by the
    creating user.

Caller is responsible for deleting the directory when done with it.
    """

prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

names = _get_candidate_names()
    if output_type is bytes:
        names = map(_os.fsencode, names)

for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        try:
            _os.mkdir(file, 0o700)
        except FileExistsError:
            continue    # try again
        except PermissionError:
            # This exception is thrown when a directory with the chosen name
            # already exists on windows.
            if (_os.name == 'nt' and _os.path.isdir(dir) and
                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
        return file

raise FileExistsError(_errno.EEXIST,
                          "No usable temporary directory name found")

def mktemp(suffix="", prefix=template, dir=None):
    """User-callable function to return a unique temporary file name.  The
    file is not created.

Arguments are similar to mkstemp, except that the 'text' argument is
    not accepted, and suffix=None, prefix=None and bytes file names are not
    supported.

THIS FUNCTION IS UNSAFE AND SHOULD NOT BE USED.  The file name may
    refer to a file that did not exist at some point, but by the time
    you get around to creating it, someone else may have beaten you to
    the punch.
    """

##    from warnings import warn as _warn
##    _warn("mktemp is a potential security risk to your program",
##          RuntimeWarning, stacklevel=2)

if dir is None:
        dir = gettempdir()

names = _get_candidate_names()
    for seq in range(TMP_MAX):
        name = next(names)
        file = _os.path.join(dir, prefix + name + suffix)
        if not _exists(file):
            return file

raise FileExistsError(_errno.EEXIST,
                          "No usable temporary filename found")

class _TemporaryFileCloser:
    """A separate object allowing proper closing of a temporary file's
    underlying file object, without adding a __del__ method to the
    temporary file."""

file = None  # Set here since __del__ checks it
    close_called = False

def __init__(self, file, name, delete=True):
        self.file = file
        self.name = name
        self.delete = delete

# NT provides delete-on-close as a primitive, so we don't need
    # the wrapper to do anything special.  We still use it so that
    # file.name is useful (i.e. not "(fdopen)") with NamedTemporaryFile.
    if _os.name != 'nt':
        # Cache the unlinker so we don't get spurious errors at
        # shutdown when the module-level "os" is None'd out.  Note
        # that this must be referenced as self.unlink, because the
        # name TemporaryFileWrapper may also get None'd out before
        # __del__ is called.

def close(self, unlink=_os.unlink):
            if not self.close_called and self.file is not None:
                self.close_called = True
                try:
                    self.file.close()
                finally:
                    if self.delete:
                        unlink(self.name)

# Need to ensure the file is deleted on __del__
        def __del__(self):
            self.close()

else:
        def close(self):
            if not self.close_called:
                self.close_called = True
                self.file.close()

class _TemporaryFileWrapper:
    """Temporary file wrapper

This class provides a wrapper around files opened for
    temporary use.  In particular, it seeks to automatically
    remove the file when it is no longer needed.
    """

def __init__(self, file, name, delete=True):
        self.file = file
        self.name = name
        self.delete = delete
        self._closer = _TemporaryFileCloser(file, name, delete)

def __getattr__(self, name):
        # Attribute lookups are delegated to the underlying file
        # and cached for non-numeric results
        # (i.e. methods are cached, closed and friends are not)
        file = self.__dict__['file']
        a = getattr(file, name)
        if hasattr(a, '__call__'):
            func = a
            @_functools.wraps(func)
            def func_wrapper(*args, **kwargs):
                return func(*args, **kwargs)
            # Avoid closing the file as long as the wrapper is alive,
            # see issue #18879.
            func_wrapper._closer = self._closer
            a = func_wrapper
        if not isinstance(a, int):
            setattr(self, name, a)
        return a

# The underlying __enter__ method returns the wrong object
    # (self.file) so override it to return the wrapper
    def __enter__(self):
        self.file.__enter__()
        return self

# Need to trap __exit__ as well to ensure the file gets
    # deleted when used in a with statement
    def __exit__(self, exc, value, tb):
        result = self.file.__exit__(exc, value, tb)
        self.close()
        return result

def close(self):
        """
        Close the temporary file, possibly deleting it.
        """
        self._closer.close()

# iter() doesn't use __getattr__ to find the __iter__ method
    def __iter__(self):
        # Don't return iter(self.file), but yield from it to avoid closing
        # file as long as it's being used as iterator (see issue #23700).  We
        # can't use 'yield from' here because iter(file) returns the file
        # object itself, which has a close method, and thus the file would get
        # closed when the generator is finalized, due to PEP380 semantics.
        for line in self.file:
            yield line

def NamedTemporaryFile(mode='w+b', buffering=-1, encoding=None,
                       newline=None, suffix=None, prefix=None,
                       dir=None, delete=True):
    """Create and return a temporary file.
    Arguments:
    'prefix', 'suffix', 'dir' -- as for mkstemp.
    'mode' -- the mode argument to io.open (default "w+b").
    'buffering' -- the buffer size argument to io.open (default -1).
    'encoding' -- the encoding argument to io.open (default None)
    'newline' -- the newline argument to io.open (default None)
    'delete' -- whether the file is deleted on close (default True).
    The file is created as mkstemp() would do it.

Returns an object with a file-like interface; the name of the file
    is accessible as its 'name' attribute.  The file will be automatically
    deleted when it is closed unless the 'delete' argument is set to False.
    """

prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

flags = _bin_openflags

# Setting O_TEMPORARY in the flags causes the OS to delete
    # the file when it is closed.  This is only supported by Windows.
    if _os.name == 'nt' and delete:
        flags |= _os.O_TEMPORARY

(fd, name) = _mkstemp_inner(dir, prefix, suffix, flags, output_type)
    try:
        file = _io.open(fd, mode, buffering=buffering,
                        newline=newline, encoding=encoding)

return _TemporaryFileWrapper(file, name, delete)
    except BaseException:
        _os.unlink(name)
        _os.close(fd)
        raise

if _os.name != 'posix' or _os.sys.platform == 'cygwin':
    # On non-POSIX and Cygwin systems, assume that we cannot unlink a file
    # while it is open.
    TemporaryFile = NamedTemporaryFile

else:
    # Is the O_TMPFILE flag available and does it work?
    # The flag is set to False if os.open(dir, os.O_TMPFILE) raises an
    # IsADirectoryError exception
    _O_TMPFILE_WORKS = hasattr(_os, 'O_TMPFILE')

def TemporaryFile(mode='w+b', buffering=-1, encoding=None,
                      newline=None, suffix=None, prefix=None,
                      dir=None):
        """Create and return a temporary file.
        Arguments:
        'prefix', 'suffix', 'dir' -- as for mkstemp.
        'mode' -- the mode argument to io.open (default "w+b").
        'buffering' -- the buffer size argument to io.open (default -1).
        'encoding' -- the encoding argument to io.open (default None)
        'newline' -- the newline argument to io.open (default None)
        The file is created as mkstemp() would do it.

Returns an object with a file-like interface.  The file has no
        name, and will cease to exist when it is closed.
        """
        global _O_TMPFILE_WORKS

prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)

flags = _bin_openflags
        if _O_TMPFILE_WORKS:
            try:
                flags2 = (flags | _os.O_TMPFILE) & ~_os.O_CREAT
                fd = _os.open(dir, flags2, 0o600)
            except IsADirectoryError:
                # Linux kernel older than 3.11 ignores the O_TMPFILE flag:
                # O_TMPFILE is read as O_DIRECTORY. Trying to open a directory
                # with O_RDWR|O_DIRECTORY fails with IsADirectoryError, a
                # directory cannot be open to write. Set flag to False to not
                # try again.
                _O_TMPFILE_WORKS = False
            except OSError:
                # The filesystem of the directory does not support O_TMPFILE.
                # For example, OSError(95, 'Operation not supported').
                #
                # On Linux kernel older than 3.11, trying to open a regular
                # file (or a symbolic link to a regular file) with O_TMPFILE
                # fails with NotADirectoryError, because O_TMPFILE is read as
                # O_DIRECTORY.
                pass
            else:
                try:
                    return _io.open(fd, mode, buffering=buffering,
                                    newline=newline, encoding=encoding)
                except:
                    _os.close(fd)
                    raise
            # Fallback to _mkstemp_inner().

(fd, name) = _mkstemp_inner(dir, prefix, suffix, flags, output_type)
        try:
            _os.unlink(name)
            return _io.open(fd, mode, buffering=buffering,
                            newline=newline, encoding=encoding)
        except:
            _os.close(fd)
            raise

class SpooledTemporaryFile:
    """Temporary file wrapper, specialized to switch from BytesIO
    or StringIO to a real file when it exceeds a certain size or
    when a fileno is needed.
    """
    _rolled = False

def __init__(self, max_size=0, mode='w+b', buffering=-1,
                 encoding=None, newline=None,
                 suffix=None, prefix=None, dir=None):
        if 'b' in mode:
            self._file = _io.BytesIO()
        else:
            # Setting newline="\n" avoids newline translation;
            # this is important because otherwise on Windows we'd
            # get double newline translation upon rollover().
            self._file = _io.StringIO(newline="\n")
        self._max_size = max_size
        self._rolled = False
        self._TemporaryFileArgs = {'mode': mode, 'buffering': buffering,
                                   'suffix': suffix, 'prefix': prefix,
                                   'encoding': encoding, 'newline': newline,
                                   'dir': dir}

def _check(self, file):
        if self._rolled: return
        max_size = self._max_size
        if max_size and file.tell() > max_size:
            self.rollover()

def rollover(self):
        if self._rolled: return
        file = self._file
        newfile = self._file = TemporaryFile(**self._TemporaryFileArgs)
        del self._TemporaryFileArgs

newfile.write(file.getvalue())
        newfile.seek(file.tell(), 0)

self._rolled = True

# The method caching trick from NamedTemporaryFile
    # won't work here, because _file may change from a
    # BytesIO/StringIO instance to a real file. So we list
    # all the methods directly.

# Context management protocol
    def __enter__(self):
        if self._file.closed:
            raise ValueError("Cannot enter context with closed file")
        return self

def __exit__(self, exc, value, tb):
        self._file.close()

# file protocol
    def __iter__(self):
        return self._file.__iter__()

def close(self):
        self._file.close()

@property
    def closed(self):
        return self._file.closed

@property
    def encoding(self):
        try:
            return self._file.encoding
        except AttributeError:
            if 'b' in self._TemporaryFileArgs['mode']:
                raise
            return self._TemporaryFileArgs['encoding']

def fileno(self):
        self.rollover()
        return self._file.fileno()

def flush(self):
        self._file.flush()

def isatty(self):
        return self._file.isatty()

@property
    def mode(self):
        try:
            return self._file.mode
        except AttributeError:
            return self._TemporaryFileArgs['mode']

@property
    def name(self):
        try:
            return self._file.name
        except AttributeError:
            return None

@property
    def newlines(self):
        try:
            return self._file.newlines
        except AttributeError:
            if 'b' in self._TemporaryFileArgs['mode']:
                raise
            return self._TemporaryFileArgs['newline']

def read(self, *args):
        return self._file.read(*args)

def readline(self, *args):
        return self._file.readline(*args)

def readlines(self, *args):
        return self._file.readlines(*args)

def seek(self, *args):
        self._file.seek(*args)

@property
    def softspace(self):
        return self._file.softspace

def tell(self):
        return self._file.tell()

def truncate(self, size=None):
        if size is None:
            self._file.truncate()
        else:
            if size > self._max_size:
                self.rollover()
            self._file.truncate(size)

def write(self, s):
        file = self._file
        rv = file.write(s)
        self._check(file)
        return rv

def writelines(self, iterable):
        file = self._file
        rv = file.writelines(iterable)
        self._check(file)
        return rv

class TemporaryDirectory(object):
    """Create and return a temporary directory.  This has the same
    behavior as mkdtemp but can be used as a context manager.  For
    example:

with TemporaryDirectory() as tmpdir:
            ...

Upon exiting the context, the directory and everything contained
    in it are removed.
    """

def __init__(self, suffix=None, prefix=None, dir=None):
        self.name = mkdtemp(suffix, prefix, dir)
        self._finalizer = _weakref.finalize(
            self, self._cleanup, self.name,
            warn_message="Implicitly cleaning up {!r}".format(self))

@classmethod
    def _cleanup(cls, name, warn_message):
        _rmtree(name)
        _warnings.warn(warn_message, ResourceWarning)

def __repr__(self):
        return "<{} {!r}>".format(self.__class__.__name__, self.name)

def __enter__(self):
        return self.name

def __exit__(self, exc, value, tb):
        self.cleanup()

def cleanup(self):
        if self._finalizer.detach():
            _rmtree(self.name)

cmd: