feat(python): move python codes.

1 files changed, 16 insertions, 0 deletions

diff --git a/python/cru/_helper.py b/python/cru/_helper.py
new file mode 100644
index 0000000..43baf46
--- /dev/null
+++ b/python/cru/_helper.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)