diff options
Diffstat (limited to '.venv/lib/python3.12/site-packages/frozenlist/__init__.py')
-rw-r--r-- | .venv/lib/python3.12/site-packages/frozenlist/__init__.py | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/frozenlist/__init__.py b/.venv/lib/python3.12/site-packages/frozenlist/__init__.py new file mode 100644 index 00000000..4022db50 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/frozenlist/__init__.py @@ -0,0 +1,98 @@ +import os +import sys +import types +from collections.abc import MutableSequence +from functools import total_ordering +from typing import Any, Type + +__version__ = "1.5.0" + +__all__ = ("FrozenList", "PyFrozenList") # type: Tuple[str, ...] + + +NO_EXTENSIONS = bool(os.environ.get("FROZENLIST_NO_EXTENSIONS")) # type: bool + + +@total_ordering +class FrozenList(MutableSequence): + __slots__ = ("_frozen", "_items") + + if sys.version_info >= (3, 9): + __class_getitem__ = classmethod(types.GenericAlias) + else: + + @classmethod + def __class_getitem__( + cls: Type["FrozenList"], + cls_item: Any, + ) -> Type["FrozenList"]: + return cls + + def __init__(self, items=None): + self._frozen = False + if items is not None: + items = list(items) + else: + items = [] + self._items = items + + @property + def frozen(self): + return self._frozen + + def freeze(self): + self._frozen = True + + def __getitem__(self, index): + return self._items[index] + + def __setitem__(self, index, value): + if self._frozen: + raise RuntimeError("Cannot modify frozen list.") + self._items[index] = value + + def __delitem__(self, index): + if self._frozen: + raise RuntimeError("Cannot modify frozen list.") + del self._items[index] + + def __len__(self): + return self._items.__len__() + + def __iter__(self): + return self._items.__iter__() + + def __reversed__(self): + return self._items.__reversed__() + + def __eq__(self, other): + return list(self) == other + + def __le__(self, other): + return list(self) <= other + + def insert(self, pos, item): + if self._frozen: + raise RuntimeError("Cannot modify frozen list.") + self._items.insert(pos, item) + + def __repr__(self): + return f"<FrozenList(frozen={self._frozen}, {self._items!r})>" + + def __hash__(self): + if self._frozen: + return hash(tuple(self)) + else: + raise RuntimeError("Cannot hash unfrozen list.") + + +PyFrozenList = FrozenList + + +if not NO_EXTENSIONS: + try: + from ._frozenlist import FrozenList as CFrozenList # type: ignore + except ImportError: # pragma: no cover + pass + else: + FrozenList = CFrozenList # type: ignore |