Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)

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2025-04-24 00:42:19 -06:00
parent 785265d3e7
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"""Object-oriented filesystem paths.
This module provides classes to represent abstract paths and concrete
paths with operations that have semantics appropriate for different
operating systems.
"""
from ._abc import *
from ._local import *
__all__ = (_abc.__all__ +
_local.__all__)

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Dependencies/Python/Lib/pathlib/_abc.py vendored Normal file
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"""
Abstract base classes for rich path objects.
This module is published as a PyPI package called "pathlib-abc".
This module is also a *PRIVATE* part of the Python standard library, where
it's developed alongside pathlib. If it finds success and maturity as a PyPI
package, it could become a public part of the standard library.
Two base classes are defined here -- PurePathBase and PathBase -- that
resemble pathlib's PurePath and Path respectively.
"""
import functools
from glob import _Globber, _no_recurse_symlinks
from errno import ENOENT, ENOTDIR, EBADF, ELOOP, EINVAL
from stat import S_ISDIR, S_ISLNK, S_ISREG, S_ISSOCK, S_ISBLK, S_ISCHR, S_ISFIFO
__all__ = ["UnsupportedOperation"]
#
# 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_ERRNOS = (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_ERRNOS or
getattr(exception, 'winerror', None) in _IGNORED_WINERRORS)
@functools.cache
def _is_case_sensitive(parser):
return parser.normcase('Aa') == 'Aa'
class UnsupportedOperation(NotImplementedError):
"""An exception that is raised when an unsupported operation is called on
a path object.
"""
pass
class ParserBase:
"""Base class for path parsers, which do low-level path manipulation.
Path parsers provide a subset of the os.path API, specifically those
functions needed to provide PurePathBase functionality. Each PurePathBase
subclass references its path parser via a 'parser' class attribute.
Every method in this base class raises an UnsupportedOperation exception.
"""
@classmethod
def _unsupported_msg(cls, attribute):
return f"{cls.__name__}.{attribute} is unsupported"
@property
def sep(self):
"""The character used to separate path components."""
raise UnsupportedOperation(self._unsupported_msg('sep'))
def join(self, path, *paths):
"""Join path segments."""
raise UnsupportedOperation(self._unsupported_msg('join()'))
def split(self, path):
"""Split the path into a pair (head, tail), where *head* is everything
before the final path separator, and *tail* is everything after.
Either part may be empty.
"""
raise UnsupportedOperation(self._unsupported_msg('split()'))
def splitdrive(self, path):
"""Split the path into a 2-item tuple (drive, tail), where *drive* is
a device name or mount point, and *tail* is everything after the
drive. Either part may be empty."""
raise UnsupportedOperation(self._unsupported_msg('splitdrive()'))
def normcase(self, path):
"""Normalize the case of the path."""
raise UnsupportedOperation(self._unsupported_msg('normcase()'))
def isabs(self, path):
"""Returns whether the path is absolute, i.e. unaffected by the
current directory or drive."""
raise UnsupportedOperation(self._unsupported_msg('isabs()'))
class PurePathBase:
"""Base class for pure path objects.
This class *does not* provide several magic methods that are defined in
its subclass PurePath. They are: __fspath__, __bytes__, __reduce__,
__hash__, __eq__, __lt__, __le__, __gt__, __ge__. Its initializer and path
joining methods accept only strings, not os.PathLike objects more broadly.
"""
__slots__ = (
# The `_raw_path` slot store a joined string path. This is set in the
# `__init__()` method.
'_raw_path',
# The '_resolving' slot stores a boolean indicating whether the path
# is being processed by `PathBase.resolve()`. This prevents duplicate
# work from occurring when `resolve()` calls `stat()` or `readlink()`.
'_resolving',
)
parser = ParserBase()
_globber = _Globber
def __init__(self, path, *paths):
self._raw_path = self.parser.join(path, *paths) if paths else path
if not isinstance(self._raw_path, str):
raise TypeError(
f"path should be a str, not {type(self._raw_path).__name__!r}")
self._resolving = False
def with_segments(self, *pathsegments):
"""Construct a new path object from any number of path-like objects.
Subclasses may override this method to customize how new path objects
are created from methods like `iterdir()`.
"""
return type(self)(*pathsegments)
def __str__(self):
"""Return the string representation of the path, suitable for
passing to system calls."""
return self._raw_path
def as_posix(self):
"""Return the string representation of the path with forward (/)
slashes."""
return str(self).replace(self.parser.sep, '/')
@property
def drive(self):
"""The drive prefix (letter or UNC path), if any."""
return self.parser.splitdrive(self.anchor)[0]
@property
def root(self):
"""The root of the path, if any."""
return self.parser.splitdrive(self.anchor)[1]
@property
def anchor(self):
"""The concatenation of the drive and root, or ''."""
return self._stack[0]
@property
def name(self):
"""The final path component, if any."""
return self.parser.split(self._raw_path)[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."""
split = self.parser.split
if split(name)[0]:
raise ValueError(f"Invalid name {name!r}")
return self.with_segments(split(self._raw_path)[0], name)
def with_stem(self, stem):
"""Return a new path with the stem changed."""
suffix = self.suffix
if not suffix:
return self.with_name(stem)
elif not stem:
# If the suffix is non-empty, we can't make the stem empty.
raise ValueError(f"{self!r} has a non-empty suffix")
else:
return self.with_name(stem + 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.
"""
stem = self.stem
if not stem:
# If the stem is empty, we can't make the suffix non-empty.
raise ValueError(f"{self!r} has an empty name")
elif suffix and not (suffix.startswith('.') and len(suffix) > 1):
raise ValueError(f"Invalid suffix {suffix!r}")
else:
return self.with_name(stem + suffix)
def relative_to(self, other, *, walk_up=False):
"""Return the relative path to another path identified by the passed
arguments. If the operation is not possible (because this is not
related to the other path), raise ValueError.
The *walk_up* parameter controls whether `..` may be used to resolve
the path.
"""
if not isinstance(other, PurePathBase):
other = self.with_segments(other)
anchor0, parts0 = self._stack
anchor1, parts1 = other._stack
if anchor0 != anchor1:
raise ValueError(f"{self._raw_path!r} and {other._raw_path!r} have different anchors")
while parts0 and parts1 and parts0[-1] == parts1[-1]:
parts0.pop()
parts1.pop()
for part in parts1:
if not part or part == '.':
pass
elif not walk_up:
raise ValueError(f"{self._raw_path!r} is not in the subpath of {other._raw_path!r}")
elif part == '..':
raise ValueError(f"'..' segment in {other._raw_path!r} cannot be walked")
else:
parts0.append('..')
return self.with_segments('', *reversed(parts0))
def is_relative_to(self, other):
"""Return True if the path is relative to another path or False.
"""
if not isinstance(other, PurePathBase):
other = self.with_segments(other)
anchor0, parts0 = self._stack
anchor1, parts1 = other._stack
if anchor0 != anchor1:
return False
while parts0 and parts1 and parts0[-1] == parts1[-1]:
parts0.pop()
parts1.pop()
for part in parts1:
if part and part != '.':
return False
return True
@property
def parts(self):
"""An object providing sequence-like access to the
components in the filesystem path."""
anchor, parts = self._stack
if anchor:
parts.append(anchor)
return tuple(reversed(parts))
def joinpath(self, *pathsegments):
"""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.with_segments(self._raw_path, *pathsegments)
def __truediv__(self, key):
try:
return self.with_segments(self._raw_path, key)
except TypeError:
return NotImplemented
def __rtruediv__(self, key):
try:
return self.with_segments(key, self._raw_path)
except TypeError:
return NotImplemented
@property
def _stack(self):
"""
Split the path into a 2-tuple (anchor, parts), where *anchor* is the
uppermost parent of the path (equivalent to path.parents[-1]), and
*parts* is a reversed list of parts following the anchor.
"""
split = self.parser.split
path = self._raw_path
parent, name = split(path)
names = []
while path != parent:
names.append(name)
path = parent
parent, name = split(path)
return path, names
@property
def parent(self):
"""The logical parent of the path."""
path = self._raw_path
parent = self.parser.split(path)[0]
if path != parent:
parent = self.with_segments(parent)
parent._resolving = self._resolving
return parent
return self
@property
def parents(self):
"""A sequence of this path's logical parents."""
split = self.parser.split
path = self._raw_path
parent = split(path)[0]
parents = []
while path != parent:
parents.append(self.with_segments(parent))
path = parent
parent = split(path)[0]
return tuple(parents)
def is_absolute(self):
"""True if the path is absolute (has both a root and, if applicable,
a drive)."""
return self.parser.isabs(self._raw_path)
@property
def _pattern_str(self):
"""The path expressed as a string, for use in pattern-matching."""
return str(self)
def match(self, path_pattern, *, case_sensitive=None):
"""
Return True if this path matches the given pattern. If the pattern is
relative, matching is done from the right; otherwise, the entire path
is matched. The recursive wildcard '**' is *not* supported by this
method.
"""
if not isinstance(path_pattern, PurePathBase):
path_pattern = self.with_segments(path_pattern)
if case_sensitive is None:
case_sensitive = _is_case_sensitive(self.parser)
sep = path_pattern.parser.sep
path_parts = self.parts[::-1]
pattern_parts = path_pattern.parts[::-1]
if not pattern_parts:
raise ValueError("empty pattern")
if len(path_parts) < len(pattern_parts):
return False
if len(path_parts) > len(pattern_parts) and path_pattern.anchor:
return False
globber = self._globber(sep, case_sensitive)
for path_part, pattern_part in zip(path_parts, pattern_parts):
match = globber.compile(pattern_part)
if match(path_part) is None:
return False
return True
def full_match(self, pattern, *, case_sensitive=None):
"""
Return True if this path matches the given glob-style pattern. The
pattern is matched against the entire path.
"""
if not isinstance(pattern, PurePathBase):
pattern = self.with_segments(pattern)
if case_sensitive is None:
case_sensitive = _is_case_sensitive(self.parser)
globber = self._globber(pattern.parser.sep, case_sensitive, recursive=True)
match = globber.compile(pattern._pattern_str)
return match(self._pattern_str) is not None
class PathBase(PurePathBase):
"""Base class for concrete path objects.
This class provides dummy implementations for many methods that derived
classes can override selectively; the default implementations raise
UnsupportedOperation. The most basic methods, such as stat() and open(),
directly raise UnsupportedOperation; these basic methods are called by
other methods such as is_dir() and read_text().
The Path class derives this class to implement local filesystem paths.
Users may derive their own classes to implement virtual filesystem paths,
such as paths in archive files or on remote storage systems.
"""
__slots__ = ()
# Maximum number of symlinks to follow in resolve()
_max_symlinks = 40
@classmethod
def _unsupported_msg(cls, attribute):
return f"{cls.__name__}.{attribute} is unsupported"
def stat(self, *, follow_symlinks=True):
"""
Return the result of the stat() system call on this path, like
os.stat() does.
"""
raise UnsupportedOperation(self._unsupported_msg('stat()'))
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)
# Convenience functions for querying the stat results
def exists(self, *, follow_symlinks=True):
"""
Whether this path exists.
This method normally follows symlinks; to check whether a symlink exists,
add the argument follow_symlinks=False.
"""
try:
self.stat(follow_symlinks=follow_symlinks)
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, *, follow_symlinks=True):
"""
Whether this path is a directory.
"""
try:
return S_ISDIR(self.stat(follow_symlinks=follow_symlinks).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, *, follow_symlinks=True):
"""
Whether this path is a regular file (also True for symlinks pointing
to regular files).
"""
try:
return S_ISREG(self.stat(follow_symlinks=follow_symlinks).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 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_junction(self):
"""
Whether this path is a junction.
"""
# Junctions are a Windows-only feature, not present in POSIX nor the
# majority of virtual filesystems. There is no cross-platform idiom
# to check for junctions (using stat().st_mode).
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 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.with_segments(other_path).stat()
return (st.st_ino == other_st.st_ino and
st.st_dev == other_st.st_dev)
def open(self, mode='r', buffering=-1, encoding=None,
errors=None, newline=None):
"""
Open the file pointed to by this path and return a file object, as
the built-in open() function does.
"""
raise UnsupportedOperation(self._unsupported_msg('open()'))
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, newline=None):
"""
Open the file in text mode, read it, and close the file.
"""
with self.open(mode='r', encoding=encoding, errors=errors, newline=newline) 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__)
with self.open(mode='w', encoding=encoding, errors=errors, newline=newline) as f:
return f.write(data)
def iterdir(self):
"""Yield path objects of the directory contents.
The children are yielded in arbitrary order, and the
special entries '.' and '..' are not included.
"""
raise UnsupportedOperation(self._unsupported_msg('iterdir()'))
def _glob_selector(self, parts, case_sensitive, recurse_symlinks):
if case_sensitive is None:
case_sensitive = _is_case_sensitive(self.parser)
case_pedantic = False
else:
# The user has expressed a case sensitivity choice, but we don't
# know the case sensitivity of the underlying filesystem, so we
# must use scandir() for everything, including non-wildcard parts.
case_pedantic = True
recursive = True if recurse_symlinks else _no_recurse_symlinks
globber = self._globber(self.parser.sep, case_sensitive, case_pedantic, recursive)
return globber.selector(parts)
def glob(self, pattern, *, case_sensitive=None, recurse_symlinks=True):
"""Iterate over this subtree and yield all existing files (of any
kind, including directories) matching the given relative pattern.
"""
if not isinstance(pattern, PurePathBase):
pattern = self.with_segments(pattern)
anchor, parts = pattern._stack
if anchor:
raise NotImplementedError("Non-relative patterns are unsupported")
select = self._glob_selector(parts, case_sensitive, recurse_symlinks)
return select(self)
def rglob(self, pattern, *, case_sensitive=None, recurse_symlinks=True):
"""Recursively yield all existing files (of any kind, including
directories) matching the given relative pattern, anywhere in
this subtree.
"""
if not isinstance(pattern, PurePathBase):
pattern = self.with_segments(pattern)
pattern = '**' / pattern
return self.glob(pattern, case_sensitive=case_sensitive, recurse_symlinks=recurse_symlinks)
def walk(self, top_down=True, on_error=None, follow_symlinks=False):
"""Walk the directory tree from this directory, similar to os.walk()."""
paths = [self]
while paths:
path = paths.pop()
if isinstance(path, tuple):
yield path
continue
dirnames = []
filenames = []
if not top_down:
paths.append((path, dirnames, filenames))
try:
for child in path.iterdir():
try:
if child.is_dir(follow_symlinks=follow_symlinks):
if not top_down:
paths.append(child)
dirnames.append(child.name)
else:
filenames.append(child.name)
except OSError:
filenames.append(child.name)
except OSError as error:
if on_error is not None:
on_error(error)
if not top_down:
while not isinstance(paths.pop(), tuple):
pass
continue
if top_down:
yield path, dirnames, filenames
paths += [path.joinpath(d) for d in reversed(dirnames)]
def absolute(self):
"""Return an absolute version of this path
No normalization or symlink resolution is performed.
Use resolve() to resolve symlinks and remove '..' segments.
"""
raise UnsupportedOperation(self._unsupported_msg('absolute()'))
@classmethod
def cwd(cls):
"""Return a new path pointing to the current working directory."""
# We call 'absolute()' rather than using 'os.getcwd()' directly to
# enable users to replace the implementation of 'absolute()' in a
# subclass and benefit from the new behaviour here. This works because
# os.path.abspath('.') == os.getcwd().
return cls('').absolute()
def expanduser(self):
""" Return a new path with expanded ~ and ~user constructs
(as returned by os.path.expanduser)
"""
raise UnsupportedOperation(self._unsupported_msg('expanduser()'))
@classmethod
def home(cls):
"""Return a new path pointing to expanduser('~').
"""
return cls("~").expanduser()
def readlink(self):
"""
Return the path to which the symbolic link points.
"""
raise UnsupportedOperation(self._unsupported_msg('readlink()'))
readlink._supported = False
def resolve(self, strict=False):
"""
Make the path absolute, resolving all symlinks on the way and also
normalizing it.
"""
if self._resolving:
return self
path_root, parts = self._stack
path = self.with_segments(path_root)
try:
path = path.absolute()
except UnsupportedOperation:
path_tail = []
else:
path_root, path_tail = path._stack
path_tail.reverse()
# If the user has *not* overridden the `readlink()` method, then symlinks are unsupported
# and (in non-strict mode) we can improve performance by not calling `stat()`.
querying = strict or getattr(self.readlink, '_supported', True)
link_count = 0
while parts:
part = parts.pop()
if not part or part == '.':
continue
if part == '..':
if not path_tail:
if path_root:
# Delete '..' segment immediately following root
continue
elif path_tail[-1] != '..':
# Delete '..' segment and its predecessor
path_tail.pop()
continue
path_tail.append(part)
if querying and part != '..':
path = self.with_segments(path_root + self.parser.sep.join(path_tail))
path._resolving = True
try:
st = path.stat(follow_symlinks=False)
if S_ISLNK(st.st_mode):
# Like Linux and macOS, raise OSError(errno.ELOOP) if too many symlinks are
# encountered during resolution.
link_count += 1
if link_count >= self._max_symlinks:
raise OSError(ELOOP, "Too many symbolic links in path", self._raw_path)
target_root, target_parts = path.readlink()._stack
# If the symlink target is absolute (like '/etc/hosts'), set the current
# path to its uppermost parent (like '/').
if target_root:
path_root = target_root
path_tail.clear()
else:
path_tail.pop()
# Add the symlink target's reversed tail parts (like ['hosts', 'etc']) to
# the stack of unresolved path parts.
parts.extend(target_parts)
continue
elif parts and not S_ISDIR(st.st_mode):
raise NotADirectoryError(ENOTDIR, "Not a directory", self._raw_path)
except OSError:
if strict:
raise
else:
querying = False
return self.with_segments(path_root + self.parser.sep.join(path_tail))
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.
"""
raise UnsupportedOperation(self._unsupported_msg('symlink_to()'))
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.
"""
raise UnsupportedOperation(self._unsupported_msg('hardlink_to()'))
def touch(self, mode=0o666, exist_ok=True):
"""
Create this file with the given access mode, if it doesn't exist.
"""
raise UnsupportedOperation(self._unsupported_msg('touch()'))
def mkdir(self, mode=0o777, parents=False, exist_ok=False):
"""
Create a new directory at this given path.
"""
raise UnsupportedOperation(self._unsupported_msg('mkdir()'))
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.
"""
raise UnsupportedOperation(self._unsupported_msg('rename()'))
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.
"""
raise UnsupportedOperation(self._unsupported_msg('replace()'))
def chmod(self, mode, *, follow_symlinks=True):
"""
Change the permissions of the path, like os.chmod().
"""
raise UnsupportedOperation(self._unsupported_msg('chmod()'))
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.
"""
raise UnsupportedOperation(self._unsupported_msg('unlink()'))
def rmdir(self):
"""
Remove this directory. The directory must be empty.
"""
raise UnsupportedOperation(self._unsupported_msg('rmdir()'))
def owner(self, *, follow_symlinks=True):
"""
Return the login name of the file owner.
"""
raise UnsupportedOperation(self._unsupported_msg('owner()'))
def group(self, *, follow_symlinks=True):
"""
Return the group name of the file gid.
"""
raise UnsupportedOperation(self._unsupported_msg('group()'))
@classmethod
def from_uri(cls, uri):
"""Return a new path from the given 'file' URI."""
raise UnsupportedOperation(cls._unsupported_msg('from_uri()'))
def as_uri(self):
"""Return the path as a URI."""
raise UnsupportedOperation(self._unsupported_msg('as_uri()'))

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import io
import ntpath
import operator
import os
import posixpath
import sys
import warnings
from glob import _StringGlobber
from itertools import chain
from _collections_abc import Sequence
try:
import pwd
except ImportError:
pwd = None
try:
import grp
except ImportError:
grp = None
from ._abc import UnsupportedOperation, PurePathBase, PathBase
__all__ = [
"PurePath", "PurePosixPath", "PureWindowsPath",
"Path", "PosixPath", "WindowsPath",
]
class _PathParents(Sequence):
"""This object provides sequence-like access to the logical ancestors
of a path. Don't try to construct it yourself."""
__slots__ = ('_path', '_drv', '_root', '_tail')
def __init__(self, path):
self._path = path
self._drv = path.drive
self._root = path.root
self._tail = path._tail
def __len__(self):
return len(self._tail)
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._path._from_parsed_parts(self._drv, self._root,
self._tail[:-idx - 1])
def __repr__(self):
return "<{}.parents>".format(type(self._path).__name__)
class PurePath(PurePathBase):
"""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__ = (
# The `_raw_paths` slot stores unnormalized string paths. This is set
# in the `__init__()` method.
'_raw_paths',
# The `_drv`, `_root` and `_tail_cached` slots store parsed and
# normalized parts of the path. They are set when any of the `drive`,
# `root` or `_tail` properties are accessed for the first time. The
# three-part division corresponds to the result of
# `os.path.splitroot()`, except that the tail is further split on path
# separators (i.e. it is a list of strings), and that the root and
# tail are normalized.
'_drv', '_root', '_tail_cached',
# The `_str` slot stores the string representation of the path,
# computed from the drive, root and tail when `__str__()` is called
# for the first time. It's used to implement `_str_normcase`
'_str',
# The `_str_normcase_cached` slot stores the string path with
# normalized case. It is set when the `_str_normcase` property is
# accessed for the first time. It's used to implement `__eq__()`
# `__hash__()`, and `_parts_normcase`
'_str_normcase_cached',
# The `_parts_normcase_cached` slot stores the case-normalized
# string path after splitting on path separators. It's set when the
# `_parts_normcase` property is accessed for the first time. It's used
# to implement comparison methods like `__lt__()`.
'_parts_normcase_cached',
# The `_hash` slot stores the hash of the case-normalized string
# path. It's set when `__hash__()` is called for the first time.
'_hash',
)
parser = os.path
_globber = _StringGlobber
def __new__(cls, *args, **kwargs):
"""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 object.__new__(cls)
def __init__(self, *args):
paths = []
for arg in args:
if isinstance(arg, PurePath):
if arg.parser is not self.parser:
# GH-103631: Convert separators for backwards compatibility.
paths.append(arg.as_posix())
else:
paths.extend(arg._raw_paths)
else:
try:
path = os.fspath(arg)
except TypeError:
path = arg
if not isinstance(path, str):
raise TypeError(
"argument should be a str or an os.PathLike "
"object where __fspath__ returns a str, "
f"not {type(path).__name__!r}")
paths.append(path)
# Avoid calling super().__init__, as an optimisation
self._raw_paths = paths
def joinpath(self, *pathsegments):
"""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.with_segments(self, *pathsegments)
def __truediv__(self, key):
try:
return self.with_segments(self, key)
except TypeError:
return NotImplemented
def __rtruediv__(self, key):
try:
return self.with_segments(key, self)
except TypeError:
return NotImplemented
def __reduce__(self):
return self.__class__, tuple(self._raw_paths)
def __repr__(self):
return "{}({!r})".format(self.__class__.__name__, self.as_posix())
def __fspath__(self):
return str(self)
def __bytes__(self):
"""Return the bytes representation of the path. This is only
recommended to use under Unix."""
return os.fsencode(self)
@property
def _str_normcase(self):
# String with normalized case, for hashing and equality checks
try:
return self._str_normcase_cached
except AttributeError:
if self.parser is posixpath:
self._str_normcase_cached = str(self)
else:
self._str_normcase_cached = str(self).lower()
return self._str_normcase_cached
def __hash__(self):
try:
return self._hash
except AttributeError:
self._hash = hash(self._str_normcase)
return self._hash
def __eq__(self, other):
if not isinstance(other, PurePath):
return NotImplemented
return self._str_normcase == other._str_normcase and self.parser is other.parser
@property
def _parts_normcase(self):
# Cached parts with normalized case, for comparisons.
try:
return self._parts_normcase_cached
except AttributeError:
self._parts_normcase_cached = self._str_normcase.split(self.parser.sep)
return self._parts_normcase_cached
def __lt__(self, other):
if not isinstance(other, PurePath) or self.parser is not other.parser:
return NotImplemented
return self._parts_normcase < other._parts_normcase
def __le__(self, other):
if not isinstance(other, PurePath) or self.parser is not other.parser:
return NotImplemented
return self._parts_normcase <= other._parts_normcase
def __gt__(self, other):
if not isinstance(other, PurePath) or self.parser is not other.parser:
return NotImplemented
return self._parts_normcase > other._parts_normcase
def __ge__(self, other):
if not isinstance(other, PurePath) or self.parser is not other.parser:
return NotImplemented
return self._parts_normcase >= other._parts_normcase
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.drive, self.root,
self._tail) or '.'
return self._str
@classmethod
def _format_parsed_parts(cls, drv, root, tail):
if drv or root:
return drv + root + cls.parser.sep.join(tail)
elif tail and cls.parser.splitdrive(tail[0])[0]:
tail = ['.'] + tail
return cls.parser.sep.join(tail)
def _from_parsed_parts(self, drv, root, tail):
path = self._from_parsed_string(self._format_parsed_parts(drv, root, tail))
path._drv = drv
path._root = root
path._tail_cached = tail
return path
def _from_parsed_string(self, path_str):
path = self.with_segments(path_str)
path._str = path_str or '.'
return path
@classmethod
def _parse_path(cls, path):
if not path:
return '', '', []
sep = cls.parser.sep
altsep = cls.parser.altsep
if altsep:
path = path.replace(altsep, sep)
drv, root, rel = cls.parser.splitroot(path)
if not root and drv.startswith(sep) and not drv.endswith(sep):
drv_parts = drv.split(sep)
if len(drv_parts) == 4 and drv_parts[2] not in '?.':
# e.g. //server/share
root = sep
elif len(drv_parts) == 6:
# e.g. //?/unc/server/share
root = sep
parsed = [sys.intern(str(x)) for x in rel.split(sep) if x and x != '.']
return drv, root, parsed
@property
def _raw_path(self):
"""The joined but unnormalized path."""
paths = self._raw_paths
if len(paths) == 0:
path = ''
elif len(paths) == 1:
path = paths[0]
else:
path = self.parser.join(*paths)
return path
@property
def drive(self):
"""The drive prefix (letter or UNC path), if any."""
try:
return self._drv
except AttributeError:
self._drv, self._root, self._tail_cached = self._parse_path(self._raw_path)
return self._drv
@property
def root(self):
"""The root of the path, if any."""
try:
return self._root
except AttributeError:
self._drv, self._root, self._tail_cached = self._parse_path(self._raw_path)
return self._root
@property
def _tail(self):
try:
return self._tail_cached
except AttributeError:
self._drv, self._root, self._tail_cached = self._parse_path(self._raw_path)
return self._tail_cached
@property
def anchor(self):
"""The concatenation of the drive and root, or ''."""
return self.drive + self.root
@property
def parts(self):
"""An object providing sequence-like access to the
components in the filesystem path."""
if self.drive or self.root:
return (self.drive + self.root,) + tuple(self._tail)
else:
return tuple(self._tail)
@property
def parent(self):
"""The logical parent of the path."""
drv = self.drive
root = self.root
tail = self._tail
if not tail:
return self
return self._from_parsed_parts(drv, root, tail[:-1])
@property
def parents(self):
"""A sequence of this path's logical parents."""
# The value of this property should not be cached on the path object,
# as doing so would introduce a reference cycle.
return _PathParents(self)
@property
def name(self):
"""The final path component, if any."""
tail = self._tail
if not tail:
return ''
return tail[-1]
def with_name(self, name):
"""Return a new path with the file name changed."""
p = self.parser
if not name or p.sep in name or (p.altsep and p.altsep in name) or name == '.':
raise ValueError(f"Invalid name {name!r}")
tail = self._tail.copy()
if not tail:
raise ValueError(f"{self!r} has an empty name")
tail[-1] = name
return self._from_parsed_parts(self.drive, self.root, tail)
def relative_to(self, other, /, *_deprecated, walk_up=False):
"""Return the relative path to another path identified by the passed
arguments. If the operation is not possible (because this is not
related to the other path), raise ValueError.
The *walk_up* parameter controls whether `..` may be used to resolve
the path.
"""
if _deprecated:
msg = ("support for supplying more than one positional argument "
"to pathlib.PurePath.relative_to() is deprecated and "
"scheduled for removal in Python 3.14")
warnings.warn(msg, DeprecationWarning, stacklevel=2)
other = self.with_segments(other, *_deprecated)
elif not isinstance(other, PurePath):
other = self.with_segments(other)
for step, path in enumerate(chain([other], other.parents)):
if path == self or path in self.parents:
break
elif not walk_up:
raise ValueError(f"{str(self)!r} is not in the subpath of {str(other)!r}")
elif path.name == '..':
raise ValueError(f"'..' segment in {str(other)!r} cannot be walked")
else:
raise ValueError(f"{str(self)!r} and {str(other)!r} have different anchors")
parts = ['..'] * step + self._tail[len(path._tail):]
return self._from_parsed_parts('', '', parts)
def is_relative_to(self, other, /, *_deprecated):
"""Return True if the path is relative to another path or False.
"""
if _deprecated:
msg = ("support for supplying more than one argument to "
"pathlib.PurePath.is_relative_to() is deprecated and "
"scheduled for removal in Python 3.14")
warnings.warn(msg, DeprecationWarning, stacklevel=2)
other = self.with_segments(other, *_deprecated)
elif not isinstance(other, PurePath):
other = self.with_segments(other)
return other == self or other in self.parents
def is_absolute(self):
"""True if the path is absolute (has both a root and, if applicable,
a drive)."""
if self.parser is posixpath:
# Optimization: work with raw paths on POSIX.
for path in self._raw_paths:
if path.startswith('/'):
return True
return False
return self.parser.isabs(self)
def is_reserved(self):
"""Return True if the path contains one of the special names reserved
by the system, if any."""
msg = ("pathlib.PurePath.is_reserved() is deprecated and scheduled "
"for removal in Python 3.15. Use os.path.isreserved() to "
"detect reserved paths on Windows.")
warnings.warn(msg, DeprecationWarning, stacklevel=2)
if self.parser is ntpath:
return self.parser.isreserved(self)
return False
def as_uri(self):
"""Return the path as a URI."""
if not self.is_absolute():
raise ValueError("relative path can't be expressed as a file URI")
drive = self.drive
if len(drive) == 2 and drive[1] == ':':
# It's a path on a local drive => 'file:///c:/a/b'
prefix = 'file:///' + drive
path = self.as_posix()[2:]
elif drive:
# It's a path on a network drive => 'file://host/share/a/b'
prefix = 'file:'
path = self.as_posix()
else:
# It's a posix path => 'file:///etc/hosts'
prefix = 'file://'
path = str(self)
from urllib.parse import quote_from_bytes
return prefix + quote_from_bytes(os.fsencode(path))
@property
def _pattern_str(self):
"""The path expressed as a string, for use in pattern-matching."""
# The string representation of an empty path is a single dot ('.'). Empty
# paths shouldn't match wildcards, so we change it to the empty string.
path_str = str(self)
return '' if path_str == '.' else path_str
# Subclassing os.PathLike makes isinstance() checks slower,
# which in turn makes Path construction slower. Register instead!
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.
"""
parser = posixpath
__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.
"""
parser = ntpath
__slots__ = ()
class Path(PathBase, 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.
"""
__slots__ = ()
as_uri = PurePath.as_uri
@classmethod
def _unsupported_msg(cls, attribute):
return f"{cls.__name__}.{attribute} is unsupported on this system"
def __init__(self, *args, **kwargs):
if kwargs:
msg = ("support for supplying keyword arguments to pathlib.PurePath "
"is deprecated and scheduled for removal in Python {remove}")
warnings._deprecated("pathlib.PurePath(**kwargs)", msg, remove=(3, 14))
super().__init__(*args)
def __new__(cls, *args, **kwargs):
if cls is Path:
cls = WindowsPath if os.name == 'nt' else PosixPath
return object.__new__(cls)
def stat(self, *, follow_symlinks=True):
"""
Return the result of the stat() system call on this path, like
os.stat() does.
"""
return os.stat(self, follow_symlinks=follow_symlinks)
def is_mount(self):
"""
Check if this path is a mount point
"""
return os.path.ismount(self)
def is_junction(self):
"""
Whether this path is a junction.
"""
return os.path.isjunction(self)
def open(self, mode='r', buffering=-1, encoding=None,
errors=None, newline=None):
"""
Open the file pointed to 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 io.open(self, mode, buffering, encoding, errors, newline)
def read_text(self, encoding=None, errors=None, newline=None):
"""
Open the file in text mode, read it, and close the file.
"""
# Call io.text_encoding() here to ensure any warning is raised at an
# appropriate stack level.
encoding = io.text_encoding(encoding)
return PathBase.read_text(self, encoding, errors, newline)
def write_text(self, data, encoding=None, errors=None, newline=None):
"""
Open the file in text mode, write to it, and close the file.
"""
# Call io.text_encoding() here to ensure any warning is raised at an
# appropriate stack level.
encoding = io.text_encoding(encoding)
return PathBase.write_text(self, data, encoding, errors, newline)
_remove_leading_dot = operator.itemgetter(slice(2, None))
_remove_trailing_slash = operator.itemgetter(slice(-1))
def _filter_trailing_slash(self, paths):
sep = self.parser.sep
anchor_len = len(self.anchor)
for path_str in paths:
if len(path_str) > anchor_len and path_str[-1] == sep:
path_str = path_str[:-1]
yield path_str
def iterdir(self):
"""Yield path objects of the directory contents.
The children are yielded in arbitrary order, and the
special entries '.' and '..' are not included.
"""
root_dir = str(self)
with os.scandir(root_dir) as scandir_it:
paths = [entry.path for entry in scandir_it]
if root_dir == '.':
paths = map(self._remove_leading_dot, paths)
return map(self._from_parsed_string, paths)
def glob(self, pattern, *, case_sensitive=None, recurse_symlinks=False):
"""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 isinstance(pattern, PurePath):
pattern = self.with_segments(pattern)
if pattern.anchor:
raise NotImplementedError("Non-relative patterns are unsupported")
parts = pattern._tail.copy()
if not parts:
raise ValueError("Unacceptable pattern: {!r}".format(pattern))
raw = pattern._raw_path
if raw[-1] in (self.parser.sep, self.parser.altsep):
# GH-65238: pathlib doesn't preserve trailing slash. Add it back.
parts.append('')
select = self._glob_selector(parts[::-1], case_sensitive, recurse_symlinks)
root = str(self)
paths = select(root)
# Normalize results
if root == '.':
paths = map(self._remove_leading_dot, paths)
if parts[-1] == '':
paths = map(self._remove_trailing_slash, paths)
elif parts[-1] == '**':
paths = self._filter_trailing_slash(paths)
paths = map(self._from_parsed_string, paths)
return paths
def rglob(self, pattern, *, case_sensitive=None, recurse_symlinks=False):
"""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)
if not isinstance(pattern, PurePath):
pattern = self.with_segments(pattern)
pattern = '**' / pattern
return self.glob(pattern, case_sensitive=case_sensitive, recurse_symlinks=recurse_symlinks)
def walk(self, top_down=True, on_error=None, follow_symlinks=False):
"""Walk the directory tree from this directory, similar to os.walk()."""
sys.audit("pathlib.Path.walk", self, on_error, follow_symlinks)
root_dir = str(self)
if not follow_symlinks:
follow_symlinks = os._walk_symlinks_as_files
results = os.walk(root_dir, top_down, on_error, follow_symlinks)
for path_str, dirnames, filenames in results:
if root_dir == '.':
path_str = path_str[2:]
yield self._from_parsed_string(path_str), dirnames, filenames
def absolute(self):
"""Return an absolute version of this path
No normalization or symlink resolution is performed.
Use resolve() to resolve symlinks and remove '..' segments.
"""
if self.is_absolute():
return self
if self.root:
drive = os.path.splitroot(os.getcwd())[0]
return self._from_parsed_parts(drive, self.root, self._tail)
if self.drive:
# There is a CWD on each drive-letter drive.
cwd = os.path.abspath(self.drive)
else:
cwd = os.getcwd()
if not self._tail:
# Fast path for "empty" paths, e.g. Path("."), Path("") or Path().
# We pass only one argument to with_segments() to avoid the cost
# of joining, and we exploit the fact that getcwd() returns a
# fully-normalized string by storing it in _str. This is used to
# implement Path.cwd().
return self._from_parsed_string(cwd)
drive, root, rel = os.path.splitroot(cwd)
if not rel:
return self._from_parsed_parts(drive, root, self._tail)
tail = rel.split(self.parser.sep)
tail.extend(self._tail)
return self._from_parsed_parts(drive, root, tail)
def resolve(self, strict=False):
"""
Make the path absolute, resolving all symlinks on the way and also
normalizing it.
"""
return self.with_segments(os.path.realpath(self, strict=strict))
if pwd:
def owner(self, *, follow_symlinks=True):
"""
Return the login name of the file owner.
"""
uid = self.stat(follow_symlinks=follow_symlinks).st_uid
return pwd.getpwuid(uid).pw_name
if grp:
def group(self, *, follow_symlinks=True):
"""
Return the group name of the file gid.
"""
gid = self.stat(follow_symlinks=follow_symlinks).st_gid
return grp.getgrgid(gid).gr_name
if hasattr(os, "readlink"):
def readlink(self):
"""
Return the path to which the symbolic link points.
"""
return self.with_segments(os.readlink(self))
def touch(self, mode=0o666, exist_ok=True):
"""
Create this file with the given access mode, if it doesn't exist.
"""
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(self, 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(self, flags, mode)
os.close(fd)
def mkdir(self, mode=0o777, parents=False, exist_ok=False):
"""
Create a new directory at this given path.
"""
try:
os.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().
"""
os.chmod(self, mode, follow_symlinks=follow_symlinks)
def unlink(self, missing_ok=False):
"""
Remove this file or link.
If the path is a directory, use rmdir() instead.
"""
try:
os.unlink(self)
except FileNotFoundError:
if not missing_ok:
raise
def rmdir(self):
"""
Remove this directory. The directory must be empty.
"""
os.rmdir(self)
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.
"""
os.rename(self, target)
return self.with_segments(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.
"""
os.replace(self, target)
return self.with_segments(target)
if hasattr(os, "symlink"):
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.
"""
os.symlink(target, self, target_is_directory)
if hasattr(os, "link"):
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.
"""
os.link(target, self)
def expanduser(self):
""" Return a new path with expanded ~ and ~user constructs
(as returned by os.path.expanduser)
"""
if (not (self.drive or self.root) and
self._tail and self._tail[0][:1] == '~'):
homedir = os.path.expanduser(self._tail[0])
if homedir[:1] == "~":
raise RuntimeError("Could not determine home directory.")
drv, root, tail = self._parse_path(homedir)
return self._from_parsed_parts(drv, root, tail + self._tail[1:])
return self
@classmethod
def from_uri(cls, uri):
"""Return a new path from the given 'file' URI."""
if not uri.startswith('file:'):
raise ValueError(f"URI does not start with 'file:': {uri!r}")
path = uri[5:]
if path[:3] == '///':
# Remove empty authority
path = path[2:]
elif path[:12] == '//localhost/':
# Remove 'localhost' authority
path = path[11:]
if path[:3] == '///' or (path[:1] == '/' and path[2:3] in ':|'):
# Remove slash before DOS device/UNC path
path = path[1:]
if path[1:2] == '|':
# Replace bar with colon in DOS drive
path = path[:1] + ':' + path[2:]
from urllib.parse import unquote_to_bytes
path = cls(os.fsdecode(unquote_to_bytes(path)))
if not path.is_absolute():
raise ValueError(f"URI is not absolute: {uri!r}")
return path
class PosixPath(Path, PurePosixPath):
"""Path subclass for non-Windows systems.
On a POSIX system, instantiating a Path should return this object.
"""
__slots__ = ()
if os.name == 'nt':
def __new__(cls, *args, **kwargs):
raise UnsupportedOperation(
f"cannot instantiate {cls.__name__!r} on your system")
class WindowsPath(Path, PureWindowsPath):
"""Path subclass for Windows systems.
On a Windows system, instantiating a Path should return this object.
"""
__slots__ = ()
if os.name != 'nt':
def __new__(cls, *args, **kwargs):
raise UnsupportedOperation(
f"cannot instantiate {cls.__name__!r} on your system")