代码拉取完成，页面将自动刷新
# uncompyle6 version 3.2.3
# Python bytecode 3.6 (3379)
# Decompiled from: Python 3.6.8 |Anaconda custom (64-bit)| (default, Feb 21 2019, 18:30:04) [MSC v.1916 64 bit (AMD64)]
# Embedded file name: pathlib.py
import fnmatch, functools, io, ntpath, os, posixpath, re, sys
from collections import Sequence
from contextlib import contextmanager
from errno import EINVAL, ENOENT, ENOTDIR
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
supports_symlinks = True
if os.name == "nt":
import nt
if sys.getwindowsversion()[:2] >= (6, 0):
from nt import _getfinalpathname
else:
supports_symlinks = False
_getfinalpathname = None
else:
nt = None
__all__ = [
"PurePath",
"PurePosixPath",
"PureWindowsPath",
"Path",
"PosixPath",
"WindowsPath",
]
def _is_wildcard_pattern(pat):
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:
if x != ".":
parsed.append(sys.intern(x))
else:
if rel:
if rel != ".":
parsed.append(sys.intern(rel))
if drv or root:
if not drv:
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:
if drv:
return (drv, root2, [drv + root2] + parts2[1:])
else:
if drv2:
if drv2 == drv or self.casefold(drv2) == self.casefold(drv):
return (drv, root, parts + parts2[1:])
else:
return (drv, root, parts + parts2)
return (drv2, root2, parts2)
class _WindowsFlavour(_Flavour):
sep = "\\"
altsep = "/"
has_drv = True
pathmod = ntpath
is_supported = os.name == "nt"
drive_letters = set((chr(x) for x in range(ord("a"), ord("z") + 1))) | set(
(chr(x) for x in range(ord("A"), ord("Z") + 1))
)
ext_namespace_prefix = "\\\\?\\"
reserved_names = (
{"CON", "PRN", "AUX", "NUL"}
| {"COM%d" % i for i in range(1, 10)}
| {"LPT%d" % i for i in range(1, 10)}
)
def splitroot(self, part, sep=sep):
first = part[0:1]
second = part[1:2]
if second == sep:
if first == sep:
prefix, part = self._split_extended_path(part)
first = part[0:1]
second = part[1:2]
prefix = ""
third = part[2:3]
if second == sep and first == sep and third != sep:
index = part.find(sep, 2)
if index != -1:
index2 = part.find(sep, index + 1)
if index2 != index + 1:
if index2 == -1:
index2 = len(part)
if prefix:
return (prefix + part[1:index2], sep, part[index2 + 1 :])
return (part[:index2], sep, part[index2 + 1 :])
drv = root = ""
if second == ":":
if 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 resolve(self, path, strict=False):
s = str(path)
if not s:
return os.getcwd()
previous_s = None
if _getfinalpathname is not None:
if strict:
return self._ext_to_normal(_getfinalpathname(s))
tail_parts = []
while True:
try:
s = self._ext_to_normal(_getfinalpathname(s))
except FileNotFoundError:
previous_s = s
s, tail = os.path.split(s)
tail_parts.append(tail)
if previous_s == s:
return path
return os.path.join(s, *reversed(tail_parts))
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 _ext_to_normal(self, s):
return self._split_extended_path(s)[1]
def is_reserved(self, parts):
if not parts:
return False
elif parts[0].startswith("\\\\"):
return False
else:
return parts[-1].partition(".")[0].upper() in self.reserved_names
def make_uri(self, path):
drive = path.drive
if len(drive) == 2:
if drive[1] == ":":
rest = path.as_posix()[2:].lstrip("/")
return "file:///%s/%s" % (
drive,
urlquote_from_bytes(rest.encode("utf-8")),
)
return "file:" + urlquote_from_bytes(path.as_posix().encode("utf-8"))
def gethomedir(self, username):
if "HOME" in os.environ:
userhome = os.environ["HOME"]
else:
if "USERPROFILE" in os.environ:
userhome = os.environ["USERPROFILE"]
else:
if "HOMEPATH" in os.environ:
try:
drv = os.environ["HOMEDRIVE"]
except KeyError:
drv = ""
userhome = drv + os.environ["HOMEPATH"]
else:
raise RuntimeError("Can't determine home directory")
if username:
if os.environ["USERNAME"] != username:
drv, root, parts = self.parse_parts((userhome,))
if parts[-1] != os.environ["USERNAME"]:
raise RuntimeError(
"Can't determine home directory for %r" % username
)
parts[-1] = username
if drv or root:
userhome = drv + root + self.join(parts[1:])
else:
userhome = self.join(parts)
return userhome
class _PosixFlavour(_Flavour):
sep = "/"
altsep = ""
has_drv = False
pathmod = posixpath
is_supported = os.name != "nt"
def splitroot(self, part, sep=sep):
if part:
if part[0] == sep:
stripped_part = part.lstrip(sep)
if len(part) - len(stripped_part) == 2:
return ("", sep * 2, stripped_part)
return ("", sep, stripped_part)
else:
return ("", "", part)
def casefold(self, s):
return s
def casefold_parts(self, parts):
return parts
def resolve(self, path, strict=False):
sep = self.sep
accessor = path._accessor
seen = {}
def _resolve(path, rest):
if rest.startswith(sep):
path = ""
for name in rest.split(sep):
if not not name:
if name == ".":
pass
else:
if name == "..":
path, _, _ = path.rpartition(sep)
continue
newpath = path + sep + name
if newpath in seen:
path = seen[newpath]
if path is not None:
pass
else:
raise RuntimeError("Symlink loop from %r" % newpath)
try:
target = accessor.readlink(newpath)
except OSError as e:
if e.errno != EINVAL:
if strict:
raise
path = newpath
seen[newpath] = None
path = _resolve(path, target)
seen[newpath] = path
return path
base = "" if path.is_absolute() else os.getcwd()
return _resolve(base, str(path)) or sep
def is_reserved(self, parts):
return False
def make_uri(self, path):
bpath = bytes(path)
return "file://" + urlquote_from_bytes(bpath)
def gethomedir(self, username):
if not username:
try:
return os.environ["HOME"]
except KeyError:
import pwd
return pwd.getpwuid(os.getuid()).pw_dir
else:
import pwd
try:
return pwd.getpwnam(username).pw_dir
except KeyError:
raise RuntimeError("Can't determine home directory for %r" % username)
_windows_flavour = _WindowsFlavour()
_posix_flavour = _PosixFlavour()
class _Accessor:
"""An accessor implements a particular (system-specific or not) way of
accessing paths on the filesystem."""
pass
class _NormalAccessor(_Accessor):
def _wrap_strfunc(strfunc):
@functools.wraps(strfunc)
def wrapped(pathobj, *args):
return strfunc(str(pathobj), *args)
return staticmethod(wrapped)
def _wrap_binary_strfunc(strfunc):
@functools.wraps(strfunc)
def wrapped(pathobjA, pathobjB, *args):
return strfunc(str(pathobjA), str(pathobjB), *args)
return staticmethod(wrapped)
stat = _wrap_strfunc(os.stat)
lstat = _wrap_strfunc(os.lstat)
open = _wrap_strfunc(os.open)
listdir = _wrap_strfunc(os.listdir)
scandir = _wrap_strfunc(os.scandir)
chmod = _wrap_strfunc(os.chmod)
if hasattr(os, "lchmod"):
lchmod = _wrap_strfunc(os.lchmod)
else:
def lchmod(self, pathobj, mode):
raise NotImplementedError("lchmod() not available on this system")
mkdir = _wrap_strfunc(os.mkdir)
unlink = _wrap_strfunc(os.unlink)
rmdir = _wrap_strfunc(os.rmdir)
rename = _wrap_binary_strfunc(os.rename)
replace = _wrap_binary_strfunc(os.replace)
if nt:
if supports_symlinks:
symlink = _wrap_binary_strfunc(os.symlink)
else:
def symlink(a, b, target_is_directory):
raise NotImplementedError("symlink() not available on this system")
else:
@staticmethod
def symlink(a, b, target_is_directory):
return os.symlink(str(a), str(b))
utime = _wrap_strfunc(os.utime)
def readlink(self, path):
return os.readlink(path)
_normal_accessor = _NormalAccessor()
def _make_selector(pattern_parts):
pat = pattern_parts[0]
child_parts = pattern_parts[1:]
if pat == "**":
cls = _RecursiveWildcardSelector
else:
if "**" in pat:
raise ValueError(
"Invalid pattern: '**' can only be an entire path component"
)
else:
if _is_wildcard_pattern(pat):
cls = _WildcardSelector
else:
cls = _PreciseSelector
return cls(pat, child_parts)
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):
self.child_parts = child_parts
if child_parts:
self.successor = _make_selector(child_parts)
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([])
else:
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):
self.name = name
_Selector.__init__(self, child_parts)
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):
self.pat = re.compile(fnmatch.translate(pat))
_Selector.__init__(self, child_parts)
def _select_from(self, parent_path, is_dir, exists, scandir):
try:
cf = parent_path._flavour.casefold
entries = list(scandir(parent_path))
for entry in entries:
if not self.dironly or entry.is_dir():
name = entry.name
casefolded = cf(name)
if self.pat.match(casefolded):
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):
_Selector.__init__(self, child_parts)
def _iterate_directories(self, parent_path, is_dir, scandir):
yield parent_path
try:
entries = list(scandir(parent_path))
for entry in entries:
if entry.is_dir():
if 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
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):
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 idx < 0 or idx >= len(self):
raise IndexError(idx)
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):
"""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):
return (self.__class__, tuple(self._parts))
@classmethod
def _parse_args(cls, args):
parts = []
for a in args:
if isinstance(a, PurePath):
parts += a._parts
else:
a = os.fspath(a)
if isinstance(a, str):
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, init=True):
self = object.__new__(cls)
drv, root, parts = self._parse_args(args)
self._drv = drv
self._root = root
self._parts = parts
if init:
self._init()
return self
@classmethod
def _from_parsed_parts(cls, drv, root, parts, init=True):
self = object.__new__(cls)
self._drv = drv
self._root = root
self._parts = parts
if init:
self._init()
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 _init(self):
pass
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(str(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):
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
else:
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
else:
return self._cparts < other._cparts
def __le__(self, other):
if not isinstance(other, PurePath) or self._flavour is not other._flavour:
return NotImplemented
else:
return self._cparts <= other._cparts
def __gt__(self, other):
if not isinstance(other, PurePath) or self._flavour is not other._flavour:
return NotImplemented
else:
return self._cparts > other._cparts
def __ge__(self, other):
if not isinstance(other, PurePath) or self._flavour is not other._flavour:
return NotImplemented
else:
return self._cparts >= other._cparts
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 ""
else:
return parts[-1]
@property
def suffix(self):
"""The final component's last suffix, if any."""
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."""
name = self.name
if name.endswith("."):
return []
else:
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_suffix(self, suffix):
"""Return a new path with the file suffix changed (or added, if none)."""
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.
"""
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} does not start with {!r}").format(str(self), str(formatted))
)
return self._from_parsed_parts("", root if n == 1 else "", abs_parts[n:])
@property
def parts(self):
"""An object providing sequence-like access to the
components in the filesystem path."""
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):
return self._make_child((key,))
def __rtruediv__(self, key):
return self._from_parts([key] + self._parts)
@property
def parent(self):
"""The logical parent of the path."""
drv = self._drv
root = self._root
parts = self._parts
if len(parts) == 1:
if 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
else:
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:
if drv != cf(self._drv):
return False
if root:
if 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:]
else:
if 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
os.PathLike.register(PurePath)
class PurePosixPath(PurePath):
_flavour = _posix_flavour
__slots__ = ()
class PureWindowsPath(PurePath):
_flavour = _windows_flavour
__slots__ = ()
class Path(PurePath):
__slots__ = ("_accessor", "_closed")
def __new__(cls, *args, **kwargs):
if cls is Path:
cls = WindowsPath if os.name == "nt" else PosixPath
self = cls._from_parts(args, init=False)
if not self._flavour.is_supported:
raise NotImplementedError(
"cannot instantiate %r on your system" % (cls.__name__,)
)
self._init()
return self
def _init(self, template=None):
self._closed = False
if template is not None:
self._accessor = template._accessor
else:
self._accessor = _normal_accessor
def _make_child_relpath(self, part):
parts = self._parts + [part]
return self._from_parsed_parts(self._drv, self._root, parts)
def __enter__(self):
if self._closed:
self._raise_closed()
return self
def __exit__(self, t, v, tb):
self._closed = True
def _raise_closed(self):
raise ValueError("I/O operation on closed path")
def _opener(self, name, flags, mode=438):
return self._accessor.open(self, flags, mode)
def _raw_open(self, flags, mode=511):
"""
Open the file pointed by this path and return a file descriptor,
as os.open() does.
"""
if self._closed:
self._raise_closed()
return self._accessor.open(self, flags, mode)
@classmethod
def cwd(cls):
"""Return a new path pointing to the current working directory
(as returned by os.getcwd()).
"""
return cls(os.getcwd())
@classmethod
def home(cls):
"""Return a new path pointing to the user's home directory (as
returned by os.path.expanduser('~')).
"""
return cls(cls()._flavour.gethomedir(None))
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 = os.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 '..'.
"""
if self._closed:
self._raise_closed()
for name in self._accessor.listdir(self):
if name in frozenset({".", ".."}):
continue
yield self._make_child_relpath(name)
if self._closed:
self._raise_closed()
def glob(self, pattern):
"""Iterate over this subtree and yield all existing files (of any
kind, including directories) matching the given pattern.
"""
if not pattern:
raise ValueError(("Unacceptable pattern: {!r}").format(pattern))
pattern = self._flavour.casefold(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))
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 pattern, anywhere in this subtree.
"""
pattern = self._flavour.casefold(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))
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.
"""
if self._closed:
self._raise_closed()
if self.is_absolute():
return self
else:
obj = self._from_parts([os.getcwd()] + self._parts, init=False)
obj._init(template=self)
return obj
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).
"""
if self._closed:
self._raise_closed()
s = self._flavour.resolve(self, strict=strict)
if s is None:
self.stat()
s = str(self.absolute())
normed = self._flavour.pathmod.normpath(s)
obj = self._from_parts((normed,), init=False)
obj._init(template=self)
return obj
def stat(self):
"""
Return the result of the stat() system call on this path, like
os.stat() does.
"""
return self._accessor.stat(self)
def owner(self):
"""
Return the login name of the file owner.
"""
import pwd
return pwd.getpwuid(self.stat().st_uid).pw_name
def group(self):
"""
Return the group name of the file gid.
"""
import grp
return grp.getgrgid(self.stat().st_gid).gr_name
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 self._closed:
self._raise_closed()
return io.open(
str(self), mode, buffering, encoding, errors, newline, opener=self._opener
)
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.
"""
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.
"""
view = memoryview(data)
with self.open(mode="wb") as (f):
return f.write(view)
def write_text(self, data, encoding=None, errors=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__)
with self.open(mode="w", encoding=encoding, errors=errors) as (f):
return f.write(data)
def touch(self, mode=438, exist_ok=True):
"""
Create this file with the given access mode, if it doesn't exist.
"""
if self._closed:
self._raise_closed()
if exist_ok:
try:
self._accessor.utime(self, None)
except OSError:
pass
else:
return
flags = os.O_CREAT | os.O_WRONLY
if not exist_ok:
flags |= os.O_EXCL
fd = self._raw_open(flags, mode)
os.close(fd)
def mkdir(self, mode=511, parents=False, exist_ok=False):
"""
Create a new directory at this given path.
"""
if self._closed:
self._raise_closed()
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:
if not exist_ok or not self.is_dir():
raise
def chmod(self, mode):
"""
Change the permissions of the path, like os.chmod().
"""
if self._closed:
self._raise_closed()
self._accessor.chmod(self, mode)
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.
"""
if self._closed:
self._raise_closed()
self._accessor.lchmod(self, mode)
def unlink(self):
"""
Remove this file or link.
If the path is a directory, use rmdir() instead.
"""
if self._closed:
self._raise_closed()
self._accessor.unlink(self)
def rmdir(self):
"""
Remove this directory. The directory must be empty.
"""
if self._closed:
self._raise_closed()
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.
"""
if self._closed:
self._raise_closed()
return self._accessor.lstat(self)
def rename(self, target):
"""
Rename this path to the given path.
"""
if self._closed:
self._raise_closed()
self._accessor.rename(self, target)
def replace(self, target):
"""
Rename this path to the given path, clobbering the existing
destination if it exists.
"""
if self._closed:
self._raise_closed()
self._accessor.replace(self, target)
def symlink_to(self, target, target_is_directory=False):
"""
Make this path a symlink pointing to the given path.
Note the order of arguments (self, target) is the reverse of os.symlink's.
"""
if self._closed:
self._raise_closed()
self._accessor.symlink(target, self, target_is_directory)
def exists(self):
"""
Whether this path exists.
"""
try:
self.stat()
except OSError as e:
if e.errno not in (ENOENT, ENOTDIR):
raise
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 e.errno not in (ENOENT, ENOTDIR):
raise
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 e.errno not in (ENOENT, ENOTDIR):
raise
return False
def is_symlink(self):
"""
Whether this path is a symbolic link.
"""
try:
return S_ISLNK(self.lstat().st_mode)
except OSError as e:
if e.errno not in (ENOENT, ENOTDIR):
raise
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 e.errno not in (ENOENT, ENOTDIR):
raise
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 e.errno not in (ENOENT, ENOTDIR):
raise
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 e.errno not in (ENOENT, ENOTDIR):
raise
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 e.errno not in (ENOENT, ENOTDIR):
raise
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):
if self._parts:
if self._parts[0][:1] == "~":
homedir = self._flavour.gethomedir(self._parts[0][1:])
return self._from_parts([homedir] + self._parts[1:])
return self
class PosixPath(Path, PurePosixPath):
__slots__ = ()
class WindowsPath(Path, PureWindowsPath):
__slots__ = ()
def owner(self):
raise NotImplementedError("Path.owner() is unsupported on this system")
def group(self):
raise NotImplementedError("Path.group() is unsupported on this system")
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