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authorcrupest <crupest@outlook.com>2024-11-11 01:12:29 +0800
committerYuqian Yang <crupest@crupest.life>2024-12-18 18:31:27 +0800
commit7fbc091ae8ed2a4bac215ee04d7c4b5d0218af4e (patch)
treece5a6b3dc74a012766c6d09e7e97cf8eba25ff9e /tools/cru-py/cru/_lang.py
parentaaa855e3839130a79193f38969f07763f2773c5d (diff)
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HALF WORK: 2024.11.28
Diffstat (limited to 'tools/cru-py/cru/_lang.py')
-rw-r--r--tools/cru-py/cru/_lang.py16
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/cru-py/cru/_lang.py b/tools/cru-py/cru/_lang.py
new file mode 100644
index 0000000..925ba00
--- /dev/null
+++ b/tools/cru-py/cru/_lang.py
@@ -0,0 +1,16 @@
+from collections.abc import Callable
+from typing import Any, Iterable, TypeVar, cast
+
+T = TypeVar("T")
+D = TypeVar("D")
+
+
+def remove_element(
+ iterable: Iterable[T | None], to_rm: Iterable[Any], des: type[D] | None = None
+) -> D:
+ to_rm = set(to_rm)
+ return cast(Callable[..., D], des or list)(v for v in iterable if v not in to_rm)
+
+
+def remove_none(iterable: Iterable[T | None], des: type[D] | None = None) -> D:
+ return cast(Callable[..., D], des or list)(v for v in iterable if v is not None)