feat(assessment): auto comprehensive assessment - rules engine from college scoring standard, per-semester stats, manual overrides, word export

This commit is contained in:
root
2026-10-17 15:40:07 +08:00
parent a0e2ded426
commit 49d8400722
2395 changed files with 1306906 additions and 94 deletions
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"""
This module exists so that pathlib objects pickled under Python 3.13 can be
unpickled in 3.14+.
"""
from pathlib import *
__all__ = [
"UnsupportedOperation",
"PurePath", "PurePosixPath", "PureWindowsPath",
"Path", "PosixPath", "WindowsPath",
]
@@ -0,0 +1,303 @@
"""
Low-level OS functionality wrappers used by pathlib.
"""
from errno import *
from io import TextIOWrapper, text_encoding
import os
import sys
try:
import fcntl
except ImportError:
fcntl = None
try:
import posix
except ImportError:
posix = None
try:
import _winapi
except ImportError:
_winapi = None
def _get_copy_blocksize(infd):
"""Determine blocksize for fastcopying on Linux.
Hopefully the whole file will be copied in a single call.
The copying itself should be performed in a loop 'till EOF is
reached (0 return) so a blocksize smaller or bigger than the actual
file size should not make any difference, also in case the file
content changes while being copied.
"""
try:
blocksize = max(os.fstat(infd).st_size, 2 ** 23) # min 8 MiB
except OSError:
blocksize = 2 ** 27 # 128 MiB
# On 32-bit architectures truncate to 1 GiB to avoid OverflowError,
# see gh-82500.
if sys.maxsize < 2 ** 32:
blocksize = min(blocksize, 2 ** 30)
return blocksize
if fcntl and hasattr(fcntl, 'FICLONE'):
def _ficlone(source_fd, target_fd):
"""
Perform a lightweight copy of two files, where the data blocks are
copied only when modified. This is known as Copy on Write (CoW),
instantaneous copy or reflink.
"""
fcntl.ioctl(target_fd, fcntl.FICLONE, source_fd)
else:
_ficlone = None
if posix and hasattr(posix, '_fcopyfile'):
def _fcopyfile(source_fd, target_fd):
"""
Copy a regular file content using high-performance fcopyfile(3)
syscall (macOS).
"""
posix._fcopyfile(source_fd, target_fd, posix._COPYFILE_DATA)
else:
_fcopyfile = None
if hasattr(os, 'copy_file_range'):
def _copy_file_range(source_fd, target_fd):
"""
Copy data from one regular mmap-like fd to another by using a
high-performance copy_file_range(2) syscall that gives filesystems
an opportunity to implement the use of reflinks or server-side
copy.
This should work on Linux >= 4.5 only.
"""
blocksize = _get_copy_blocksize(source_fd)
offset = 0
while True:
sent = os.copy_file_range(source_fd, target_fd, blocksize,
offset_dst=offset)
if sent == 0:
break # EOF
offset += sent
else:
_copy_file_range = None
if hasattr(os, 'sendfile'):
def _sendfile(source_fd, target_fd):
"""Copy data from one regular mmap-like fd to another by using
high-performance sendfile(2) syscall.
This should work on Linux >= 2.6.33 only.
"""
blocksize = _get_copy_blocksize(source_fd)
offset = 0
while True:
sent = os.sendfile(target_fd, source_fd, offset, blocksize)
if sent == 0:
break # EOF
offset += sent
else:
_sendfile = None
if _winapi and hasattr(_winapi, 'CopyFile2'):
def copyfile2(source, target):
"""
Copy from one file to another using CopyFile2 (Windows only).
"""
_winapi.CopyFile2(source, target, 0)
else:
copyfile2 = None
def copyfileobj(source_f, target_f):
"""
Copy data from file-like object source_f to file-like object target_f.
"""
try:
source_fd = source_f.fileno()
target_fd = target_f.fileno()
except Exception:
pass # Fall through to generic code.
else:
try:
# Use OS copy-on-write where available.
if _ficlone:
try:
_ficlone(source_fd, target_fd)
return
except OSError as err:
if err.errno not in (EBADF, EOPNOTSUPP, ETXTBSY, EXDEV):
raise err
# Use OS copy where available.
if _fcopyfile:
try:
_fcopyfile(source_fd, target_fd)
return
except OSError as err:
if err.errno not in (EINVAL, ENOTSUP):
raise err
if _copy_file_range:
try:
_copy_file_range(source_fd, target_fd)
return
except OSError as err:
if err.errno not in (ETXTBSY, EXDEV):
raise err
if _sendfile:
try:
_sendfile(source_fd, target_fd)
return
except OSError as err:
if err.errno != ENOTSOCK:
raise err
except OSError as err:
# Produce more useful error messages.
err.filename = source_f.name
err.filename2 = target_f.name
raise err
# Last resort: copy with fileobj read() and write().
read_source = source_f.read
write_target = target_f.write
while buf := read_source(1024 * 1024):
write_target(buf)
def _open_reader(obj):
cls = type(obj)
try:
open_reader = cls.__open_reader__
except AttributeError:
cls_name = cls.__name__
raise TypeError(f"{cls_name} can't be opened for reading") from None
else:
return open_reader(obj)
def _open_writer(obj, mode):
cls = type(obj)
try:
open_writer = cls.__open_writer__
except AttributeError:
cls_name = cls.__name__
raise TypeError(f"{cls_name} can't be opened for writing") from None
else:
return open_writer(obj, mode)
def _open_updater(obj, mode):
cls = type(obj)
try:
open_updater = cls.__open_updater__
except AttributeError:
cls_name = cls.__name__
raise TypeError(f"{cls_name} can't be opened for updating") from None
else:
return open_updater(obj, mode)
def vfsopen(obj, 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.
Unlike the built-in open() function, this function additionally accepts
'openable' objects, which are objects with any of these special methods:
__open_reader__()
__open_writer__(mode)
__open_updater__(mode)
'__open_reader__' is called for 'r' mode; '__open_writer__' for 'a', 'w'
and 'x' modes; and '__open_updater__' for 'r+' and 'w+' modes. If text
mode is requested, the result is wrapped in an io.TextIOWrapper object.
"""
if buffering != -1:
raise ValueError("buffer size can't be customized")
text = 'b' not in mode
if text:
# Call io.text_encoding() here to ensure any warning is raised at an
# appropriate stack level.
encoding = text_encoding(encoding)
try:
return open(obj, mode, buffering, encoding, errors, newline)
except TypeError:
pass
if not text:
if encoding is not None:
raise ValueError("binary mode doesn't take an encoding argument")
if errors is not None:
raise ValueError("binary mode doesn't take an errors argument")
if newline is not None:
raise ValueError("binary mode doesn't take a newline argument")
mode = ''.join(sorted(c for c in mode if c not in 'bt'))
if mode == 'r':
stream = _open_reader(obj)
elif mode in ('a', 'w', 'x'):
stream = _open_writer(obj, mode)
elif mode in ('+r', '+w'):
stream = _open_updater(obj, mode[1])
else:
raise ValueError(f'invalid mode: {mode}')
if text:
stream = TextIOWrapper(stream, encoding, errors, newline)
return stream
def vfspath(obj):
"""
Return the string representation of a virtual path object.
"""
cls = type(obj)
try:
vfspath_method = cls.__vfspath__
except AttributeError:
cls_name = cls.__name__
raise TypeError(f"expected JoinablePath object, not {cls_name}") from None
else:
return vfspath_method(obj)
def ensure_distinct_paths(source, target):
"""
Raise OSError(EINVAL) if the other path is within this path.
"""
# Note: there is no straightforward, foolproof algorithm to determine
# if one directory is within another (a particularly perverse example
# would be a single network share mounted in one location via NFS, and
# in another location via CIFS), so we simply checks whether the
# other path is lexically equal to, or within, this path.
if source == target:
err = OSError(EINVAL, "Source and target are the same path")
elif source in target.parents:
err = OSError(EINVAL, "Source path is a parent of target path")
else:
return
err.filename = vfspath(source)
err.filename2 = vfspath(target)
raise err
def ensure_different_files(source, target):
"""
Raise OSError(EINVAL) if both paths refer to the same file.
"""
try:
source_file_id = source.info._file_id
target_file_id = target.info._file_id
except AttributeError:
if source != target:
return
else:
try:
if source_file_id() != target_file_id():
return
except (OSError, ValueError):
return
err = OSError(EINVAL, "Source and target are the same file")
err.filename = vfspath(source)
err.filename2 = vfspath(target)
raise err
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"""
Protocols for supporting classes in pathlib.
"""
# This module also provides abstract base classes for rich path objects.
# These ABCs are a *private* part of the Python standard library, but they're
# made available as a PyPI package called "pathlib-abc". It's possible they'll
# become an official part of the standard library in future.
#
# Three ABCs are provided -- _JoinablePath, _ReadablePath and _WritablePath
from abc import ABC, abstractmethod
from glob import _GlobberBase
from io import text_encoding
from pathlib._os import (vfsopen, vfspath, ensure_distinct_paths,
ensure_different_files, copyfileobj)
from pathlib import PurePath, Path
from typing import Optional, Protocol, runtime_checkable
def _explode_path(path, split):
"""
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.
"""
parent, name = split(path)
names = []
while path != parent:
names.append(name)
path = parent
parent, name = split(path)
return path, names
@runtime_checkable
class _PathParser(Protocol):
"""Protocol 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 JoinablePath functionality. Each JoinablePath
subclass references its path parser via a 'parser' class attribute.
"""
sep: str
altsep: Optional[str]
def split(self, path: str) -> tuple[str, str]: ...
def splitext(self, path: str) -> tuple[str, str]: ...
def normcase(self, path: str) -> str: ...
@runtime_checkable
class PathInfo(Protocol):
"""Protocol for path info objects, which support querying the file type.
Methods may return cached results.
"""
def exists(self, *, follow_symlinks: bool = True) -> bool: ...
def is_dir(self, *, follow_symlinks: bool = True) -> bool: ...
def is_file(self, *, follow_symlinks: bool = True) -> bool: ...
def is_symlink(self) -> bool: ...
class _PathGlobber(_GlobberBase):
"""Provides shell-style pattern matching and globbing for ReadablePath.
"""
@staticmethod
def lexists(path):
return path.info.exists(follow_symlinks=False)
@staticmethod
def scandir(path):
return ((child.info, child.name, child) for child in path.iterdir())
@staticmethod
def concat_path(path, text):
return path.with_segments(vfspath(path) + text)
stringify_path = staticmethod(vfspath)
class _JoinablePath(ABC):
"""Abstract base class for pure path objects.
This class *does not* provide several magic methods that are defined in
its implementation PurePath. They are: __init__, __fspath__, __bytes__,
__reduce__, __hash__, __eq__, __lt__, __le__, __gt__, __ge__.
"""
__slots__ = ()
@property
@abstractmethod
def parser(self):
"""Implementation of pathlib._types.Parser used for low-level path
parsing and manipulation.
"""
raise NotImplementedError
@abstractmethod
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()`.
"""
raise NotImplementedError
@abstractmethod
def __vfspath__(self):
"""Return the string representation of the path."""
raise NotImplementedError
@property
def anchor(self):
"""The concatenation of the drive and root, or ''."""
return _explode_path(vfspath(self), self.parser.split)[0]
@property
def name(self):
"""The final path component, if any."""
return self.parser.split(vfspath(self))[1]
@property
def suffix(self):
"""
The final component's last suffix, if any.
This includes the leading period. For example: '.txt'
"""
return self.parser.splitext(self.name)[1]
@property
def suffixes(self):
"""
A list of the final component's suffixes, if any.
These include the leading periods. For example: ['.tar', '.gz']
"""
split = self.parser.splitext
stem, suffix = split(self.name)
suffixes = []
while suffix:
suffixes.append(suffix)
stem, suffix = split(stem)
return suffixes[::-1]
@property
def stem(self):
"""The final path component, minus its last suffix."""
return self.parser.splitext(self.name)[0]
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}")
path = vfspath(self)
path = path.removesuffix(split(path)[1]) + name
return self.with_segments(path)
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('.'):
raise ValueError(f"Invalid suffix {suffix!r}")
else:
return self.with_name(stem + suffix)
@property
def parts(self):
"""An object providing sequence-like access to the
components in the filesystem path."""
anchor, parts = _explode_path(vfspath(self), self.parser.split)
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(vfspath(self), *pathsegments)
def __truediv__(self, key):
try:
return self.with_segments(vfspath(self), key)
except TypeError:
return NotImplemented
def __rtruediv__(self, key):
try:
return self.with_segments(key, vfspath(self))
except TypeError:
return NotImplemented
@property
def parent(self):
"""The logical parent of the path."""
path = vfspath(self)
parent = self.parser.split(path)[0]
if path != parent:
return self.with_segments(parent)
return self
@property
def parents(self):
"""A sequence of this path's logical parents."""
split = self.parser.split
path = vfspath(self)
parent = split(path)[0]
parents = []
while path != parent:
parents.append(self.with_segments(parent))
path = parent
parent = split(path)[0]
return tuple(parents)
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.
"""
parts = []
for path in (other,) + other.parents:
if self.is_relative_to(path):
break
elif not walk_up:
raise ValueError(f"{self!r} is not in the subpath of {other!r}")
elif path.name == '..':
raise ValueError(f"'..' segment in {other!r} cannot be walked")
else:
parts.append('..')
else:
raise ValueError(f"{self!r} and {other!r} have different anchors")
return self.with_segments(*parts, *self.parts[len(path.parts):])
def is_relative_to(self, other):
"""Return True if the path is relative to another path or False.
"""
return other == self or other in self.parents
def full_match(self, pattern):
"""
Return True if this path matches the given glob-style pattern. The
pattern is matched against the entire path.
"""
case_sensitive = self.parser.normcase('Aa') == 'Aa'
globber = _PathGlobber(self.parser.sep, case_sensitive, recursive=True)
match = globber.compile(pattern, altsep=self.parser.altsep)
return match(vfspath(self)) is not None
class _ReadablePath(_JoinablePath):
"""Abstract base class for readable path objects.
The Path class implements this ABC for local filesystem paths. Users may
create subclasses to implement readable virtual filesystem paths, such as
paths in archive files or on remote storage systems.
"""
__slots__ = ()
@property
@abstractmethod
def info(self):
"""
A PathInfo object that exposes the file type and other file attributes
of this path.
"""
raise NotImplementedError
@abstractmethod
def __open_reader__(self):
"""
Open the file pointed to by this path for reading in binary mode and
return a file object.
"""
raise NotImplementedError
def read_bytes(self):
"""
Open the file in bytes mode, read it, and close the file.
"""
with vfsopen(self, 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.
"""
# Call io.text_encoding() here to ensure any warning is raised at an
# appropriate stack level.
encoding = text_encoding(encoding)
with vfsopen(self, mode='r', encoding=encoding, errors=errors, newline=newline) as f:
return f.read()
@abstractmethod
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 NotImplementedError
def glob(self, pattern, *, recurse_symlinks=True):
"""Iterate over this subtree and yield all existing files (of any
kind, including directories) matching the given relative pattern.
"""
anchor, parts = _explode_path(pattern, self.parser.split)
if anchor:
raise NotImplementedError("Non-relative patterns are unsupported")
elif not parts:
raise ValueError(f"Unacceptable pattern: {pattern!r}")
elif not recurse_symlinks:
raise NotImplementedError("recurse_symlinks=False is unsupported")
case_sensitive = self.parser.normcase('Aa') == 'Aa'
globber = _PathGlobber(self.parser.sep, case_sensitive, recursive=True)
select = globber.selector(parts)
return select(self.joinpath(''))
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():
if child.info.is_dir(follow_symlinks=follow_symlinks):
if not top_down:
paths.append(child)
dirnames.append(child.name)
else:
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)]
@abstractmethod
def readlink(self):
"""
Return the path to which the symbolic link points.
"""
raise NotImplementedError
def copy(self, target, **kwargs):
"""
Recursively copy this file or directory tree to the given destination.
"""
ensure_distinct_paths(self, target)
target._copy_from(self, **kwargs)
return target.joinpath() # Empty join to ensure fresh metadata.
def copy_into(self, target_dir, **kwargs):
"""
Copy this file or directory tree into the given existing directory.
"""
name = self.name
if not name:
raise ValueError(f"{self!r} has an empty name")
return self.copy(target_dir / name, **kwargs)
class _WritablePath(_JoinablePath):
"""Abstract base class for writable path objects.
The Path class implements this ABC for local filesystem paths. Users may
create subclasses to implement writable virtual filesystem paths, such as
paths in archive files or on remote storage systems.
"""
__slots__ = ()
@abstractmethod
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 NotImplementedError
@abstractmethod
def mkdir(self):
"""
Create a new directory at this given path.
"""
raise NotImplementedError
@abstractmethod
def __open_writer__(self, mode):
"""
Open the file pointed to by this path for writing in binary mode and
return a file object.
"""
raise NotImplementedError
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 vfsopen(self, 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.
"""
# Call io.text_encoding() here to ensure any warning is raised at an
# appropriate stack level.
encoding = text_encoding(encoding)
if not isinstance(data, str):
raise TypeError('data must be str, not %s' %
data.__class__.__name__)
with vfsopen(self, mode='w', encoding=encoding, errors=errors, newline=newline) as f:
return f.write(data)
def _copy_from(self, source, follow_symlinks=True):
"""
Recursively copy the given path to this path.
"""
stack = [(source, self)]
while stack:
src, dst = stack.pop()
if not follow_symlinks and src.info.is_symlink():
dst.symlink_to(vfspath(src.readlink()), src.info.is_dir())
elif src.info.is_dir():
children = src.iterdir()
dst.mkdir()
for child in children:
stack.append((child, dst.joinpath(child.name)))
else:
ensure_different_files(src, dst)
with vfsopen(src, 'rb') as source_f:
with vfsopen(dst, 'wb') as target_f:
copyfileobj(source_f, target_f)
_JoinablePath.register(PurePath)
_ReadablePath.register(Path)
_WritablePath.register(Path)