fix ya.make

1 files changed, 0 insertions, 1461 deletions

diff --git a/contrib/tools/python3/src/Lib/pathlib.py b/contrib/tools/python3/src/Lib/pathlib.py
deleted file mode 100644
index 97b23ca45a3..00000000000
--- a/contrib/tools/python3/src/Lib/pathlib.py
+++ /dev/null
@@ -1,1461 +0,0 @@
-import fnmatch
-import functools
-import io
-import ntpath
-import os
-import posixpath
-import re
-import sys
-import warnings
-from _collections_abc import Sequence
-from errno import EINVAL, ENOENT, ENOTDIR, EBADF, ELOOP
-from operator import attrgetter
-from stat import S_ISDIR, S_ISLNK, S_ISREG, S_ISSOCK, S_ISBLK, S_ISCHR, S_ISFIFO
-from urllib.parse import quote_from_bytes as urlquote_from_bytes
-
-
-__all__ = [
-    "PurePath", "PurePosixPath", "PureWindowsPath",
-    "Path", "PosixPath", "WindowsPath",
-    ]
-
-#
-# Internals
-#
-
-_WINERROR_NOT_READY = 21  # drive exists but is not accessible
-_WINERROR_INVALID_NAME = 123  # fix for bpo-35306
-_WINERROR_CANT_RESOLVE_FILENAME = 1921  # broken symlink pointing to itself
-
-# EBADF - guard against macOS `stat` throwing EBADF
-_IGNORED_ERROS = (ENOENT, ENOTDIR, EBADF, ELOOP)
-
-_IGNORED_WINERRORS = (
-    _WINERROR_NOT_READY,
-    _WINERROR_INVALID_NAME,
-    _WINERROR_CANT_RESOLVE_FILENAME)
-
-def _ignore_error(exception):
-    return (getattr(exception, 'errno', None) in _IGNORED_ERROS or
-            getattr(exception, 'winerror', None) in _IGNORED_WINERRORS)
-
-
-def _is_wildcard_pattern(pat):
-    # Whether this pattern needs actual matching using fnmatch, or can
-    # be looked up directly as a file.
-    return "*" in pat or "?" in pat or "[" in pat
-
-
-class _Flavour(object):
-    """A flavour implements a particular (platform-specific) set of path
-    semantics."""
-
-    def __init__(self):
-        self.join = self.sep.join
-
-    def parse_parts(self, parts):
-        parsed = []
-        sep = self.sep
-        altsep = self.altsep
-        drv = root = ''
-        it = reversed(parts)
-        for part in it:
-            if not part:
-                continue
-            if altsep:
-                part = part.replace(altsep, sep)
-            drv, root, rel = self.splitroot(part)
-            if sep in rel:
-                for x in reversed(rel.split(sep)):
-                    if x and x != '.':
-                        parsed.append(sys.intern(x))
-            else:
-                if rel and rel != '.':
-                    parsed.append(sys.intern(rel))
-            if drv or root:
-                if not drv:
-                    # If no drive is present, try to find one in the previous
-                    # parts. This makes the result of parsing e.g.
-                    # ("C:", "/", "a") reasonably intuitive.
-                    for part in it:
-                        if not part:
-                            continue
-                        if altsep:
-                            part = part.replace(altsep, sep)
-                        drv = self.splitroot(part)[0]
-                        if drv:
-                            break
-                break
-        if drv or root:
-            parsed.append(drv + root)
-        parsed.reverse()
-        return drv, root, parsed
-
-    def join_parsed_parts(self, drv, root, parts, drv2, root2, parts2):
-        """
-        Join the two paths represented by the respective
-        (drive, root, parts) tuples.  Return a new (drive, root, parts) tuple.
-        """
-        if root2:
-            if not drv2 and drv:
-                return drv, root2, [drv + root2] + parts2[1:]
-        elif drv2:
-            if drv2 == drv or self.casefold(drv2) == self.casefold(drv):
-                # Same drive => second path is relative to the first
-                return drv, root, parts + parts2[1:]
-        else:
-            # Second path is non-anchored (common case)
-            return drv, root, parts + parts2
-        return drv2, root2, parts2
-
-
-class _WindowsFlavour(_Flavour):
-    # Reference for Windows paths can be found at
-    # http://msdn.microsoft.com/en-us/library/aa365247%28v=vs.85%29.aspx
-
-    sep = '\\'
-    altsep = '/'
-    has_drv = True
-    pathmod = ntpath
-
-    is_supported = (os.name == 'nt')
-
-    drive_letters = set('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')
-    ext_namespace_prefix = '\\\\?\\'
-
-    reserved_names = (
-        {'CON', 'PRN', 'AUX', 'NUL', 'CONIN$', 'CONOUT$'} |
-        {'COM%s' % c for c in '123456789\xb9\xb2\xb3'} |
-        {'LPT%s' % c for c in '123456789\xb9\xb2\xb3'}
-        )
-
-    # Interesting findings about extended paths:
-    # * '\\?\c:\a' is an extended path, which bypasses normal Windows API
-    #   path processing. Thus relative paths are not resolved and slash is not
-    #   translated to backslash. It has the native NT path limit of 32767
-    #   characters, but a bit less after resolving device symbolic links,
-    #   such as '\??\C:' => '\Device\HarddiskVolume2'.
-    # * '\\?\c:/a' looks for a device named 'C:/a' because slash is a
-    #   regular name character in the object namespace.
-    # * '\\?\c:\foo/bar' is invalid because '/' is illegal in NT filesystems.
-    #   The only path separator at the filesystem level is backslash.
-    # * '//?/c:\a' and '//?/c:/a' are effectively equivalent to '\\.\c:\a' and
-    #   thus limited to MAX_PATH.
-    # * Prior to Windows 8, ANSI API bytes paths are limited to MAX_PATH,
-    #   even with the '\\?\' prefix.
-
-    def splitroot(self, part, sep=sep):
-        first = part[0:1]
-        second = part[1:2]
-        if (second == sep and first == sep):
-            # XXX extended paths should also disable the collapsing of "."
-            # components (according to MSDN docs).
-            prefix, part = self._split_extended_path(part)
-            first = part[0:1]
-            second = part[1:2]
-        else:
-            prefix = ''
-        third = part[2:3]
-        if (second == sep and first == sep and third != sep):
-            # is a UNC path:
-            # vvvvvvvvvvvvvvvvvvvvv root
-            # \\machine\mountpoint\directory\etc\...
-            #            directory ^^^^^^^^^^^^^^
-            index = part.find(sep, 2)
-            if index != -1:
-                index2 = part.find(sep, index + 1)
-                # a UNC path can't have two slashes in a row
-                # (after the initial two)
-                if index2 != index + 1:
-                    if index2 == -1:
-                        index2 = len(part)
-                    if prefix:
-                        return prefix + part[1:index2], sep, part[index2+1:]
-                    else:
-                        return part[:index2], sep, part[index2+1:]
-        drv = root = ''
-        if second == ':' and first in self.drive_letters:
-            drv = part[:2]
-            part = part[2:]
-            first = third
-        if first == sep:
-            root = first
-            part = part.lstrip(sep)
-        return prefix + drv, root, part
-
-    def casefold(self, s):
-        return s.lower()
-
-    def casefold_parts(self, parts):
-        return [p.lower() for p in parts]
-
-    def compile_pattern(self, pattern):
-        return re.compile(fnmatch.translate(pattern), re.IGNORECASE).fullmatch
-
-    def _split_extended_path(self, s, ext_prefix=ext_namespace_prefix):
-        prefix = ''
-        if s.startswith(ext_prefix):
-            prefix = s[:4]
-            s = s[4:]
-            if s.startswith('UNC\\'):
-                prefix += s[:3]
-                s = '\\' + s[3:]
-        return prefix, s
-
-    def is_reserved(self, parts):
-        # NOTE: the rules for reserved names seem somewhat complicated
-        # (e.g. r"..\NUL" is reserved but not r"foo\NUL" if "foo" does not
-        # exist). We err on the side of caution and return True for paths
-        # which are not considered reserved by Windows.
-        if not parts:
-            return False
-        if parts[0].startswith('\\\\'):
-            # UNC paths are never reserved
-            return False
-        name = parts[-1].partition('.')[0].partition(':')[0].rstrip(' ')
-        return name.upper() in self.reserved_names
-
-    def make_uri(self, path):
-        # Under Windows, file URIs use the UTF-8 encoding.
-        drive = path.drive
-        if len(drive) == 2 and drive[1] == ':':
-            # It's a path on a local drive => 'file:///c:/a/b'
-            rest = path.as_posix()[2:].lstrip('/')
-            return 'file:///%s/%s' % (
-                drive, urlquote_from_bytes(rest.encode('utf-8')))
-        else:
-            # It's a path on a network drive => 'file://host/share/a/b'
-            return 'file:' + urlquote_from_bytes(path.as_posix().encode('utf-8'))
-
-
-class _PosixFlavour(_Flavour):
-    sep = '/'
-    altsep = ''
-    has_drv = False
-    pathmod = posixpath
-
-    is_supported = (os.name != 'nt')
-
-    def splitroot(self, part, sep=sep):
-        if part and part[0] == sep:
-            stripped_part = part.lstrip(sep)
-            # According to POSIX path resolution:
-            # http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap04.html#tag_04_11
-            # "A pathname that begins with two successive slashes may be
-            # interpreted in an implementation-defined manner, although more
-            # than two leading slashes shall be treated as a single slash".
-            if len(part) - len(stripped_part) == 2:
-                return '', sep * 2, stripped_part
-            else:
-                return '', sep, stripped_part
-        else:
-            return '', '', part
-
-    def casefold(self, s):
-        return s
-
-    def casefold_parts(self, parts):
-        return parts
-
-    def compile_pattern(self, pattern):
-        return re.compile(fnmatch.translate(pattern)).fullmatch
-
-    def is_reserved(self, parts):
-        return False
-
-    def make_uri(self, path):
-        # We represent the path using the local filesystem encoding,
-        # for portability to other applications.
-        bpath = bytes(path)
-        return 'file://' + urlquote_from_bytes(bpath)
-
-
-_windows_flavour = _WindowsFlavour()
-_posix_flavour = _PosixFlavour()
-
-
-class _Accessor:
-    """An accessor implements a particular (system-specific or not) way of
-    accessing paths on the filesystem."""
-
-
-class _NormalAccessor(_Accessor):
-
-    stat = os.stat
-
-    open = io.open
-
-    listdir = os.listdir
-
-    scandir = os.scandir
-
-    chmod = os.chmod
-
-    mkdir = os.mkdir
-
-    unlink = os.unlink
-
-    if hasattr(os, "link"):
-        link = os.link
-    else:
-        def link(self, src, dst):
-            raise NotImplementedError("os.link() not available on this system")
-
-    rmdir = os.rmdir
-
-    rename = os.rename
-
-    replace = os.replace
-
-    if hasattr(os, "symlink"):
-        symlink = os.symlink
-    else:
-        def symlink(self, src, dst, target_is_directory=False):
-            raise NotImplementedError("os.symlink() not available on this system")
-
-    def touch(self, path, mode=0o666, exist_ok=True):
-        if exist_ok:
-            # First try to bump modification time
-            # Implementation note: GNU touch uses the UTIME_NOW option of
-            # the utimensat() / futimens() functions.
-            try:
-                os.utime(path, None)
-            except OSError:
-                # Avoid exception chaining
-                pass
-            else:
-                return
-        flags = os.O_CREAT | os.O_WRONLY
-        if not exist_ok:
-            flags |= os.O_EXCL
-        fd = os.open(path, flags, mode)
-        os.close(fd)
-
-    if hasattr(os, "readlink"):
-        readlink = os.readlink
-    else:
-        def readlink(self, path):
-            raise NotImplementedError("os.readlink() not available on this system")
-
-    def owner(self, path):
-        try:
-            import pwd
-            return pwd.getpwuid(self.stat(path).st_uid).pw_name
-        except ImportError:
-            raise NotImplementedError("Path.owner() is unsupported on this system")
-
-    def group(self, path):
-        try:
-            import grp
-            return grp.getgrgid(self.stat(path).st_gid).gr_name
-        except ImportError:
-            raise NotImplementedError("Path.group() is unsupported on this system")
-
-    getcwd = os.getcwd
-
-    expanduser = staticmethod(os.path.expanduser)
-
-    realpath = staticmethod(os.path.realpath)
-
-
-_normal_accessor = _NormalAccessor()
-
-
-#
-# Globbing helpers
-#
-
-def _make_selector(pattern_parts, flavour):
-    pat = pattern_parts[0]
-    child_parts = pattern_parts[1:]
-    if pat == '**':
-        cls = _RecursiveWildcardSelector
-    elif '**' in pat:
-        raise ValueError("Invalid pattern: '**' can only be an entire path component")
-    elif _is_wildcard_pattern(pat):
-        cls = _WildcardSelector
-    else:
-        cls = _PreciseSelector
-    return cls(pat, child_parts, flavour)
-
-if hasattr(functools, "lru_cache"):
-    _make_selector = functools.lru_cache()(_make_selector)
-
-
-class _Selector:
-    """A selector matches a specific glob pattern part against the children
-    of a given path."""
-
-    def __init__(self, child_parts, flavour):
-        self.child_parts = child_parts
-        if child_parts:
-            self.successor = _make_selector(child_parts, flavour)
-            self.dironly = True
-        else:
-            self.successor = _TerminatingSelector()
-            self.dironly = False
-
-    def select_from(self, parent_path):
-        """Iterate over all child paths of `parent_path` matched by this
-        selector.  This can contain parent_path itself."""
-        path_cls = type(parent_path)
-        is_dir = path_cls.is_dir
-        exists = path_cls.exists
-        scandir = parent_path._accessor.scandir
-        if not is_dir(parent_path):
-            return iter([])
-        return self._select_from(parent_path, is_dir, exists, scandir)
-
-
-class _TerminatingSelector:
-
-    def _select_from(self, parent_path, is_dir, exists, scandir):
-        yield parent_path
-
-
-class _PreciseSelector(_Selector):
-
-    def __init__(self, name, child_parts, flavour):
-        self.name = name
-        _Selector.__init__(self, child_parts, flavour)
-
-    def _select_from(self, parent_path, is_dir, exists, scandir):
-        try:
-            path = parent_path._make_child_relpath(self.name)
-            if (is_dir if self.dironly else exists)(path):
-                for p in self.successor._select_from(path, is_dir, exists, scandir):
-                    yield p
-        except PermissionError:
-            return
-
-
-class _WildcardSelector(_Selector):
-
-    def __init__(self, pat, child_parts, flavour):
-        self.match = flavour.compile_pattern(pat)
-        _Selector.__init__(self, child_parts, flavour)
-
-    def _select_from(self, parent_path, is_dir, exists, scandir):
-        try:
-            with scandir(parent_path) as scandir_it:
-                entries = list(scandir_it)
-            for entry in entries:
-                if self.dironly:
-                    try:
-                        # "entry.is_dir()" can raise PermissionError
-                        # in some cases (see bpo-38894), which is not
-                        # among the errors ignored by _ignore_error()
-                        if not entry.is_dir():
-                            continue
-                    except OSError as e:
-                        if not _ignore_error(e):
-                            raise
-                        continue
-                name = entry.name
-                if self.match(name):
-                    path = parent_path._make_child_relpath(name)
-                    for p in self.successor._select_from(path, is_dir, exists, scandir):
-                        yield p
-        except PermissionError:
-            return
-
-
-class _RecursiveWildcardSelector(_Selector):
-
-    def __init__(self, pat, child_parts, flavour):
-        _Selector.__init__(self, child_parts, flavour)
-
-    def _iterate_directories(self, parent_path, is_dir, scandir):
-        yield parent_path
-        try:
-            with scandir(parent_path) as scandir_it:
-                entries = list(scandir_it)
-            for entry in entries:
-                entry_is_dir = False
-                try:
-                    entry_is_dir = entry.is_dir()
-                except OSError as e:
-                    if not _ignore_error(e):
-                        raise
-                if entry_is_dir and not entry.is_symlink():
-                    path = parent_path._make_child_relpath(entry.name)
-                    for p in self._iterate_directories(path, is_dir, scandir):
-                        yield p
-        except PermissionError:
-            return
-
-    def _select_from(self, parent_path, is_dir, exists, scandir):
-        try:
-            yielded = set()
-            try:
-                successor_select = self.successor._select_from
-                for starting_point in self._iterate_directories(parent_path, is_dir, scandir):
-                    for p in successor_select(starting_point, is_dir, exists, scandir):
-                        if p not in yielded:
-                            yield p
-                            yielded.add(p)
-            finally:
-                yielded.clear()
-        except PermissionError:
-            return
-
-
-#
-# Public API
-#
-
-class _PathParents(Sequence):
-    """This object provides sequence-like access to the logical ancestors
-    of a path.  Don't try to construct it yourself."""
-    __slots__ = ('_pathcls', '_drv', '_root', '_parts')
-
-    def __init__(self, path):
-        # We don't store the instance to avoid reference cycles
-        self._pathcls = type(path)
-        self._drv = path._drv
-        self._root = path._root
-        self._parts = path._parts
-
-    def __len__(self):
-        if self._drv or self._root:
-            return len(self._parts) - 1
-        else:
-            return len(self._parts)
-
-    def __getitem__(self, idx):
-        if isinstance(idx, slice):
-            return tuple(self[i] for i in range(*idx.indices(len(self))))
-
-        if idx >= len(self) or idx < -len(self):
-            raise IndexError(idx)
-        if idx < 0:
-            idx += len(self)
-        return self._pathcls._from_parsed_parts(self._drv, self._root,
-                                                self._parts[:-idx - 1])
-
-    def __repr__(self):
-        return "<{}.parents>".format(self._pathcls.__name__)
-
-
-class PurePath(object):
-    """Base class for manipulating paths without I/O.
-
-    PurePath represents a filesystem path and offers operations which
-    don't imply any actual filesystem I/O.  Depending on your system,
-    instantiating a PurePath will return either a PurePosixPath or a
-    PureWindowsPath object.  You can also instantiate either of these classes
-    directly, regardless of your system.
-    """
-    __slots__ = (
-        '_drv', '_root', '_parts',
-        '_str', '_hash', '_pparts', '_cached_cparts',
-    )
-
-    def __new__(cls, *args):
-        """Construct a PurePath from one or several strings and or existing
-        PurePath objects.  The strings and path objects are combined so as
-        to yield a canonicalized path, which is incorporated into the
-        new PurePath object.
-        """
-        if cls is PurePath:
-            cls = PureWindowsPath if os.name == 'nt' else PurePosixPath
-        return cls._from_parts(args)
-
-    def __reduce__(self):
-        # Using the parts tuple helps share interned path parts
-        # when pickling related paths.
-        return (self.__class__, tuple(self._parts))
-
-    @classmethod
-    def _parse_args(cls, args):
-        # This is useful when you don't want to create an instance, just
-        # canonicalize some constructor arguments.
-        parts = []
-        for a in args:
-            if isinstance(a, PurePath):
-                parts += a._parts
-            else:
-                a = os.fspath(a)
-                if isinstance(a, str):
-                    # Force-cast str subclasses to str (issue #21127)
-                    parts.append(str(a))
-                else:
-                    raise TypeError(
-                        "argument should be a str object or an os.PathLike "
-                        "object returning str, not %r"
-                        % type(a))
-        return cls._flavour.parse_parts(parts)
-
-    @classmethod
-    def _from_parts(cls, args):
-        # We need to call _parse_args on the instance, so as to get the
-        # right flavour.
-        self = object.__new__(cls)
-        drv, root, parts = self._parse_args(args)
-        self._drv = drv
-        self._root = root
-        self._parts = parts
-        return self
-
-    @classmethod
-    def _from_parsed_parts(cls, drv, root, parts):
-        self = object.__new__(cls)
-        self._drv = drv
-        self._root = root
-        self._parts = parts
-        return self
-
-    @classmethod
-    def _format_parsed_parts(cls, drv, root, parts):
-        if drv or root:
-            return drv + root + cls._flavour.join(parts[1:])
-        else:
-            return cls._flavour.join(parts)
-
-    def _make_child(self, args):
-        drv, root, parts = self._parse_args(args)
-        drv, root, parts = self._flavour.join_parsed_parts(
-            self._drv, self._root, self._parts, drv, root, parts)
-        return self._from_parsed_parts(drv, root, parts)
-
-    def __str__(self):
-        """Return the string representation of the path, suitable for
-        passing to system calls."""
-        try:
-            return self._str
-        except AttributeError:
-            self._str = self._format_parsed_parts(self._drv, self._root,
-                                                  self._parts) or '.'
-            return self._str
-
-    def __fspath__(self):
-        return str(self)
-
-    def as_posix(self):
-        """Return the string representation of the path with forward (/)
-        slashes."""
-        f = self._flavour
-        return str(self).replace(f.sep, '/')
-
-    def __bytes__(self):
-        """Return the bytes representation of the path.  This is only
-        recommended to use under Unix."""
-        return os.fsencode(self)
-
-    def __repr__(self):
-        return "{}({!r})".format(self.__class__.__name__, self.as_posix())
-
-    def as_uri(self):
-        """Return the path as a 'file' URI."""
-        if not self.is_absolute():
-            raise ValueError("relative path can't be expressed as a file URI")
-        return self._flavour.make_uri(self)
-
-    @property
-    def _cparts(self):
-        # Cached casefolded parts, for hashing and comparison
-        try:
-            return self._cached_cparts
-        except AttributeError:
-            self._cached_cparts = self._flavour.casefold_parts(self._parts)
-            return self._cached_cparts
-
-    def __eq__(self, other):
-        if not isinstance(other, PurePath):
-            return NotImplemented
-        return self._cparts == other._cparts and self._flavour is other._flavour
-
-    def __hash__(self):
-        try:
-            return self._hash
-        except AttributeError:
-            self._hash = hash(tuple(self._cparts))
-            return self._hash
-
-    def __lt__(self, other):
-        if not isinstance(other, PurePath) or self._flavour is not other._flavour:
-            return NotImplemented
-        return self._cparts < other._cparts
-
-    def __le__(self, other):
-        if not isinstance(other, PurePath) or self._flavour is not other._flavour:
-            return NotImplemented
-        return self._cparts <= other._cparts
-
-    def __gt__(self, other):
-        if not isinstance(other, PurePath) or self._flavour is not other._flavour:
-            return NotImplemented
-        return self._cparts > other._cparts
-
-    def __ge__(self, other):
-        if not isinstance(other, PurePath) or self._flavour is not other._flavour:
-            return NotImplemented
-        return self._cparts >= other._cparts
-
-    def __class_getitem__(cls, type):
-        return cls
-
-    drive = property(attrgetter('_drv'),
-                     doc="""The drive prefix (letter or UNC path), if any.""")
-
-    root = property(attrgetter('_root'),
-                    doc="""The root of the path, if any.""")
-
-    @property
-    def anchor(self):
-        """The concatenation of the drive and root, or ''."""
-        anchor = self._drv + self._root
-        return anchor
-
-    @property
-    def name(self):
-        """The final path component, if any."""
-        parts = self._parts
-        if len(parts) == (1 if (self._drv or self._root) else 0):
-            return ''
-        return parts[-1]
-
-    @property
-    def suffix(self):
-        """
-        The final component's last suffix, if any.
-
-        This includes the leading period. For example: '.txt'
-        """
-        name = self.name
-        i = name.rfind('.')
-        if 0 < i < len(name) - 1:
-            return name[i:]
-        else:
-            return ''
-
-    @property
-    def suffixes(self):
-        """
-        A list of the final component's suffixes, if any.
-
-        These include the leading periods. For example: ['.tar', '.gz']
-        """
-        name = self.name
-        if name.endswith('.'):
-            return []
-        name = name.lstrip('.')
-        return ['.' + suffix for suffix in name.split('.')[1:]]
-
-    @property
-    def stem(self):
-        """The final path component, minus its last suffix."""
-        name = self.name
-        i = name.rfind('.')
-        if 0 < i < len(name) - 1:
-            return name[:i]
-        else:
-            return name
-
-    def with_name(self, name):
-        """Return a new path with the file name changed."""
-        if not self.name:
-            raise ValueError("%r has an empty name" % (self,))
-        drv, root, parts = self._flavour.parse_parts((name,))
-        if (not name or name[-1] in [self._flavour.sep, self._flavour.altsep]
-            or drv or root or len(parts) != 1):
-            raise ValueError("Invalid name %r" % (name))
-        return self._from_parsed_parts(self._drv, self._root,
-                                       self._parts[:-1] + [name])
-
-    def with_stem(self, stem):
-        """Return a new path with the stem changed."""
-        return self.with_name(stem + self.suffix)
-
-    def with_suffix(self, suffix):
-        """Return a new path with the file suffix changed.  If the path
-        has no suffix, add given suffix.  If the given suffix is an empty
-        string, remove the suffix from the path.
-        """
-        f = self._flavour
-        if f.sep in suffix or f.altsep and f.altsep in suffix:
-            raise ValueError("Invalid suffix %r" % (suffix,))
-        if suffix and not suffix.startswith('.') or suffix == '.':
-            raise ValueError("Invalid suffix %r" % (suffix))
-        name = self.name
-        if not name:
-            raise ValueError("%r has an empty name" % (self,))
-        old_suffix = self.suffix
-        if not old_suffix:
-            name = name + suffix
-        else:
-            name = name[:-len(old_suffix)] + suffix
-        return self._from_parsed_parts(self._drv, self._root,
-                                       self._parts[:-1] + [name])
-
-    def relative_to(self, *other):
-        """Return the relative path to another path identified by the passed
-        arguments.  If the operation is not possible (because this is not
-        a subpath of the other path), raise ValueError.
-        """
-        # For the purpose of this method, drive and root are considered
-        # separate parts, i.e.:
-        #   Path('c:/').relative_to('c:')  gives Path('/')
-        #   Path('c:/').relative_to('/')   raise ValueError
-        if not other:
-            raise TypeError("need at least one argument")
-        parts = self._parts
-        drv = self._drv
-        root = self._root
-        if root:
-            abs_parts = [drv, root] + parts[1:]
-        else:
-            abs_parts = parts
-        to_drv, to_root, to_parts = self._parse_args(other)
-        if to_root:
-            to_abs_parts = [to_drv, to_root] + to_parts[1:]
-        else:
-            to_abs_parts = to_parts
-        n = len(to_abs_parts)
-        cf = self._flavour.casefold_parts
-        if (root or drv) if n == 0 else cf(abs_parts[:n]) != cf(to_abs_parts):
-            formatted = self._format_parsed_parts(to_drv, to_root, to_parts)
-            raise ValueError("{!r} is not in the subpath of {!r}"
-                    " OR one path is relative and the other is absolute."
-                             .format(str(self), str(formatted)))
-        return self._from_parsed_parts('', root if n == 1 else '',
-                                       abs_parts[n:])
-
-    def is_relative_to(self, *other):
-        """Return True if the path is relative to another path or False.
-        """
-        try:
-            self.relative_to(*other)
-            return True
-        except ValueError:
-            return False
-
-    @property
-    def parts(self):
-        """An object providing sequence-like access to the
-        components in the filesystem path."""
-        # We cache the tuple to avoid building a new one each time .parts
-        # is accessed.  XXX is this necessary?
-        try:
-            return self._pparts
-        except AttributeError:
-            self._pparts = tuple(self._parts)
-            return self._pparts
-
-    def joinpath(self, *args):
-        """Combine this path with one or several arguments, and return a
-        new path representing either a subpath (if all arguments are relative
-        paths) or a totally different path (if one of the arguments is
-        anchored).
-        """
-        return self._make_child(args)
-
-    def __truediv__(self, key):
-        try:
-            return self._make_child((key,))
-        except TypeError:
-            return NotImplemented
-
-    def __rtruediv__(self, key):
-        try:
-            return self._from_parts([key] + self._parts)
-        except TypeError:
-            return NotImplemented
-
-    @property
-    def parent(self):
-        """The logical parent of the path."""
-        drv = self._drv
-        root = self._root
-        parts = self._parts
-        if len(parts) == 1 and (drv or root):
-            return self
-        return self._from_parsed_parts(drv, root, parts[:-1])
-
-    @property
-    def parents(self):
-        """A sequence of this path's logical parents."""
-        return _PathParents(self)
-
-    def is_absolute(self):
-        """True if the path is absolute (has both a root and, if applicable,
-        a drive)."""
-        if not self._root:
-            return False
-        return not self._flavour.has_drv or bool(self._drv)
-
-    def is_reserved(self):
-        """Return True if the path contains one of the special names reserved
-        by the system, if any."""
-        return self._flavour.is_reserved(self._parts)
-
-    def match(self, path_pattern):
-        """
-        Return True if this path matches the given pattern.
-        """
-        cf = self._flavour.casefold
-        path_pattern = cf(path_pattern)
-        drv, root, pat_parts = self._flavour.parse_parts((path_pattern,))
-        if not pat_parts:
-            raise ValueError("empty pattern")
-        if drv and drv != cf(self._drv):
-            return False
-        if root and root != cf(self._root):
-            return False
-        parts = self._cparts
-        if drv or root:
-            if len(pat_parts) != len(parts):
-                return False
-            pat_parts = pat_parts[1:]
-        elif len(pat_parts) > len(parts):
-            return False
-        for part, pat in zip(reversed(parts), reversed(pat_parts)):
-            if not fnmatch.fnmatchcase(part, pat):
-                return False
-        return True
-
-# Can't subclass os.PathLike from PurePath and keep the constructor
-# optimizations in PurePath._parse_args().
-os.PathLike.register(PurePath)
-
-
-class PurePosixPath(PurePath):
-    """PurePath subclass for non-Windows systems.
-
-    On a POSIX system, instantiating a PurePath should return this object.
-    However, you can also instantiate it directly on any system.
-    """
-    _flavour = _posix_flavour
-    __slots__ = ()
-
-
-class PureWindowsPath(PurePath):
-    """PurePath subclass for Windows systems.
-
-    On a Windows system, instantiating a PurePath should return this object.
-    However, you can also instantiate it directly on any system.
-    """
-    _flavour = _windows_flavour
-    __slots__ = ()
-
-
-# Filesystem-accessing classes
-
-
-class Path(PurePath):
-    """PurePath subclass that can make system calls.
-
-    Path represents a filesystem path but unlike PurePath, also offers
-    methods to do system calls on path objects. Depending on your system,
-    instantiating a Path will return either a PosixPath or a WindowsPath
-    object. You can also instantiate a PosixPath or WindowsPath directly,
-    but cannot instantiate a WindowsPath on a POSIX system or vice versa.
-    """
-    _accessor = _normal_accessor
-    __slots__ = ()
-
-    def __new__(cls, *args, **kwargs):
-        if cls is Path:
-            cls = WindowsPath if os.name == 'nt' else PosixPath
-        self = cls._from_parts(args)
-        if not self._flavour.is_supported:
-            raise NotImplementedError("cannot instantiate %r on your system"
-                                      % (cls.__name__,))
-        return self
-
-    def _make_child_relpath(self, part):
-        # This is an optimization used for dir walking.  `part` must be
-        # a single part relative to this path.
-        parts = self._parts + [part]
-        return self._from_parsed_parts(self._drv, self._root, parts)
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, t, v, tb):
-        # https://bugs.python.org/issue39682
-        # In previous versions of pathlib, this method marked this path as
-        # closed; subsequent attempts to perform I/O would raise an IOError.
-        # This functionality was never documented, and had the effect of
-        # making Path objects mutable, contrary to PEP 428. In Python 3.9 the
-        # _closed attribute was removed, and this method made a no-op.
-        # This method and __enter__()/__exit__() should be deprecated and
-        # removed in the future.
-        pass
-
-    # Public API
-
-    @classmethod
-    def cwd(cls):
-        """Return a new path pointing to the current working directory
-        (as returned by os.getcwd()).
-        """
-        return cls(cls._accessor.getcwd())
-
-    @classmethod
-    def home(cls):
-        """Return a new path pointing to the user's home directory (as
-        returned by os.path.expanduser('~')).
-        """
-        return cls("~").expanduser()
-
-    def samefile(self, other_path):
-        """Return whether other_path is the same or not as this file
-        (as returned by os.path.samefile()).
-        """
-        st = self.stat()
-        try:
-            other_st = other_path.stat()
-        except AttributeError:
-            other_st = self._accessor.stat(other_path)
-        return os.path.samestat(st, other_st)
-
-    def iterdir(self):
-        """Iterate over the files in this directory.  Does not yield any
-        result for the special paths '.' and '..'.
-        """
-        for name in self._accessor.listdir(self):
-            if name in {'.', '..'}:
-                # Yielding a path object for these makes little sense
-                continue
-            yield self._make_child_relpath(name)
-
-    def glob(self, pattern):
-        """Iterate over this subtree and yield all existing files (of any
-        kind, including directories) matching the given relative pattern.
-        """
-        sys.audit("pathlib.Path.glob", self, pattern)
-        if not pattern:
-            raise ValueError("Unacceptable pattern: {!r}".format(pattern))
-        drv, root, pattern_parts = self._flavour.parse_parts((pattern,))
-        if drv or root:
-            raise NotImplementedError("Non-relative patterns are unsupported")
-        selector = _make_selector(tuple(pattern_parts), self._flavour)
-        for p in selector.select_from(self):
-            yield p
-
-    def rglob(self, pattern):
-        """Recursively yield all existing files (of any kind, including
-        directories) matching the given relative pattern, anywhere in
-        this subtree.
-        """
-        sys.audit("pathlib.Path.rglob", self, pattern)
-        drv, root, pattern_parts = self._flavour.parse_parts((pattern,))
-        if drv or root:
-            raise NotImplementedError("Non-relative patterns are unsupported")
-        selector = _make_selector(("**",) + tuple(pattern_parts), self._flavour)
-        for p in selector.select_from(self):
-            yield p
-
-    def absolute(self):
-        """Return an absolute version of this path.  This function works
-        even if the path doesn't point to anything.
-
-        No normalization is done, i.e. all '.' and '..' will be kept along.
-        Use resolve() to get the canonical path to a file.
-        """
-        # XXX untested yet!
-        if self.is_absolute():
-            return self
-        # FIXME this must defer to the specific flavour (and, under Windows,
-        # use nt._getfullpathname())
-        return self._from_parts([self._accessor.getcwd()] + self._parts)
-
-    def resolve(self, strict=False):
-        """
-        Make the path absolute, resolving all symlinks on the way and also
-        normalizing it (for example turning slashes into backslashes under
-        Windows).
-        """
-
-        def check_eloop(e):
-            winerror = getattr(e, 'winerror', 0)
-            if e.errno == ELOOP or winerror == _WINERROR_CANT_RESOLVE_FILENAME:
-                raise RuntimeError("Symlink loop from %r" % e.filename)
-
-        try:
-            s = self._accessor.realpath(self, strict=strict)
-        except OSError as e:
-            check_eloop(e)
-            raise
-        p = self._from_parts((s,))
-
-        # In non-strict mode, realpath() doesn't raise on symlink loops.
-        # Ensure we get an exception by calling stat()
-        if not strict:
-            try:
-                p.stat()
-            except OSError as e:
-                check_eloop(e)
-        return p
-
-    def stat(self, *, follow_symlinks=True):
-        """
-        Return the result of the stat() system call on this path, like
-        os.stat() does.
-        """
-        return self._accessor.stat(self, follow_symlinks=follow_symlinks)
-
-    def owner(self):
-        """
-        Return the login name of the file owner.
-        """
-        return self._accessor.owner(self)
-
-    def group(self):
-        """
-        Return the group name of the file gid.
-        """
-        return self._accessor.group(self)
-
-    def open(self, mode='r', buffering=-1, encoding=None,
-             errors=None, newline=None):
-        """
-        Open the file pointed by this path and return a file object, as
-        the built-in open() function does.
-        """
-        if "b" not in mode:
-            encoding = io.text_encoding(encoding)
-        return self._accessor.open(self, mode, buffering, encoding, errors,
-                                   newline)
-
-    def read_bytes(self):
-        """
-        Open the file in bytes mode, read it, and close the file.
-        """
-        with self.open(mode='rb') as f:
-            return f.read()
-
-    def read_text(self, encoding=None, errors=None):
-        """
-        Open the file in text mode, read it, and close the file.
-        """
-        encoding = io.text_encoding(encoding)
-        with self.open(mode='r', encoding=encoding, errors=errors) as f:
-            return f.read()
-
-    def write_bytes(self, data):
-        """
-        Open the file in bytes mode, write to it, and close the file.
-        """
-        # type-check for the buffer interface before truncating the file
-        view = memoryview(data)
-        with self.open(mode='wb') as f:
-            return f.write(view)
-
-    def write_text(self, data, encoding=None, errors=None, newline=None):
-        """
-        Open the file in text mode, write to it, and close the file.
-        """
-        if not isinstance(data, str):
-            raise TypeError('data must be str, not %s' %
-                            data.__class__.__name__)
-        encoding = io.text_encoding(encoding)
-        with self.open(mode='w', encoding=encoding, errors=errors, newline=newline) as f:
-            return f.write(data)
-
-    def readlink(self):
-        """
-        Return the path to which the symbolic link points.
-        """
-        path = self._accessor.readlink(self)
-        return self._from_parts((path,))
-
-    def touch(self, mode=0o666, exist_ok=True):
-        """
-        Create this file with the given access mode, if it doesn't exist.
-        """
-        self._accessor.touch(self, mode, exist_ok)
-
-    def mkdir(self, mode=0o777, parents=False, exist_ok=False):
-        """
-        Create a new directory at this given path.
-        """
-        try:
-            self._accessor.mkdir(self, mode)
-        except FileNotFoundError:
-            if not parents or self.parent == self:
-                raise
-            self.parent.mkdir(parents=True, exist_ok=True)
-            self.mkdir(mode, parents=False, exist_ok=exist_ok)
-        except OSError:
-            # Cannot rely on checking for EEXIST, since the operating system
-            # could give priority to other errors like EACCES or EROFS
-            if not exist_ok or not self.is_dir():
-                raise
-
-    def chmod(self, mode, *, follow_symlinks=True):
-        """
-        Change the permissions of the path, like os.chmod().
-        """
-        self._accessor.chmod(self, mode, follow_symlinks=follow_symlinks)
-
-    def lchmod(self, mode):
-        """
-        Like chmod(), except if the path points to a symlink, the symlink's
-        permissions are changed, rather than its target's.
-        """
-        self.chmod(mode, follow_symlinks=False)
-
-    def unlink(self, missing_ok=False):
-        """
-        Remove this file or link.
-        If the path is a directory, use rmdir() instead.
-        """
-        try:
-            self._accessor.unlink(self)
-        except FileNotFoundError:
-            if not missing_ok:
-                raise
-
-    def rmdir(self):
-        """
-        Remove this directory.  The directory must be empty.
-        """
-        self._accessor.rmdir(self)
-
-    def lstat(self):
-        """
-        Like stat(), except if the path points to a symlink, the symlink's
-        status information is returned, rather than its target's.
-        """
-        return self.stat(follow_symlinks=False)
-
-    def rename(self, target):
-        """
-        Rename this path to the target path.
-
-        The target path may be absolute or relative. Relative paths are
-        interpreted relative to the current working directory, *not* the
-        directory of the Path object.
-
-        Returns the new Path instance pointing to the target path.
-        """
-        self._accessor.rename(self, target)
-        return self.__class__(target)
-
-    def replace(self, target):
-        """
-        Rename this path to the target path, overwriting if that path exists.
-
-        The target path may be absolute or relative. Relative paths are
-        interpreted relative to the current working directory, *not* the
-        directory of the Path object.
-
-        Returns the new Path instance pointing to the target path.
-        """
-        self._accessor.replace(self, target)
-        return self.__class__(target)
-
-    def symlink_to(self, target, target_is_directory=False):
-        """
-        Make this path a symlink pointing to the target path.
-        Note the order of arguments (link, target) is the reverse of os.symlink.
-        """
-        self._accessor.symlink(target, self, target_is_directory)
-
-    def hardlink_to(self, target):
-        """
-        Make this path a hard link pointing to the same file as *target*.
-
-        Note the order of arguments (self, target) is the reverse of os.link's.
-        """
-        self._accessor.link(target, self)
-
-    def link_to(self, target):
-        """
-        Make the target path a hard link pointing to this path.
-
-        Note this function does not make this path a hard link to *target*,
-        despite the implication of the function and argument names. The order
-        of arguments (target, link) is the reverse of Path.symlink_to, but
-        matches that of os.link.
-
-        Deprecated since Python 3.10 and scheduled for removal in Python 3.12.
-        Use `hardlink_to()` instead.
-        """
-        warnings.warn("pathlib.Path.link_to() is deprecated and is scheduled "
-                      "for removal in Python 3.12. "
-                      "Use pathlib.Path.hardlink_to() instead.",
-                      DeprecationWarning, stacklevel=2)
-        self._accessor.link(self, target)
-
-    # Convenience functions for querying the stat results
-
-    def exists(self):
-        """
-        Whether this path exists.
-        """
-        try:
-            self.stat()
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-        return True
-
-    def is_dir(self):
-        """
-        Whether this path is a directory.
-        """
-        try:
-            return S_ISDIR(self.stat().st_mode)
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            # Path doesn't exist or is a broken symlink
-            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-
-    def is_file(self):
-        """
-        Whether this path is a regular file (also True for symlinks pointing
-        to regular files).
-        """
-        try:
-            return S_ISREG(self.stat().st_mode)
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            # Path doesn't exist or is a broken symlink
-            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-
-    def is_mount(self):
-        """
-        Check if this path is a POSIX mount point
-        """
-        # Need to exist and be a dir
-        if not self.exists() or not self.is_dir():
-            return False
-
-        try:
-            parent_dev = self.parent.stat().st_dev
-        except OSError:
-            return False
-
-        dev = self.stat().st_dev
-        if dev != parent_dev:
-            return True
-        ino = self.stat().st_ino
-        parent_ino = self.parent.stat().st_ino
-        return ino == parent_ino
-
-    def is_symlink(self):
-        """
-        Whether this path is a symbolic link.
-        """
-        try:
-            return S_ISLNK(self.lstat().st_mode)
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            # Path doesn't exist
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-
-    def is_block_device(self):
-        """
-        Whether this path is a block device.
-        """
-        try:
-            return S_ISBLK(self.stat().st_mode)
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            # Path doesn't exist or is a broken symlink
-            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-
-    def is_char_device(self):
-        """
-        Whether this path is a character device.
-        """
-        try:
-            return S_ISCHR(self.stat().st_mode)
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            # Path doesn't exist or is a broken symlink
-            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-
-    def is_fifo(self):
-        """
-        Whether this path is a FIFO.
-        """
-        try:
-            return S_ISFIFO(self.stat().st_mode)
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            # Path doesn't exist or is a broken symlink
-            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-
-    def is_socket(self):
-        """
-        Whether this path is a socket.
-        """
-        try:
-            return S_ISSOCK(self.stat().st_mode)
-        except OSError as e:
-            if not _ignore_error(e):
-                raise
-            # Path doesn't exist or is a broken symlink
-            # (see http://web.archive.org/web/20200623061726/https://bitbucket.org/pitrou/pathlib/issues/12/ )
-            return False
-        except ValueError:
-            # Non-encodable path
-            return False
-
-    def expanduser(self):
-        """ Return a new path with expanded ~ and ~user constructs
-        (as returned by os.path.expanduser)
-        """
-        if (not (self._drv or self._root) and
-            self._parts and self._parts[0][:1] == '~'):
-            homedir = self._accessor.expanduser(self._parts[0])
-            if homedir[:1] == "~":
-                raise RuntimeError("Could not determine home directory.")
-            return self._from_parts([homedir] + self._parts[1:])
-
-        return self
-
-
-class PosixPath(Path, PurePosixPath):
-    """Path subclass for non-Windows systems.
-
-    On a POSIX system, instantiating a Path should return this object.
-    """
-    __slots__ = ()
-
-class WindowsPath(Path, PureWindowsPath):
-    """Path subclass for Windows systems.
-
-    On a Windows system, instantiating a Path should return this object.
-    """
-    __slots__ = ()
-
-    def is_mount(self):
-        raise NotImplementedError("Path.is_mount() is unsupported on this system")