diff --git a/Lib/test/test_bigmem.py b/Lib/test/test_bigmem.py
@@ -765,16 +765,6 @@ def test_translate(self, size):
        self.assertEqual(s.count(_('!')), repeats * 2)
        self.assertEqual(s.count(_('z')), repeats * 3)

-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
-    def test_lstrip(self, size):
-        super().test_lstrip(size)
-
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
-    def test_rstrip(self, size):
-        super().test_rstrip(size)
-

class BytesTest(unittest.TestCase, BaseStrTest):


diff --git a/vm/src/builtins/str.rs b/vm/src/builtins/str.rs
@@ -592,25 +592,41 @@ impl PyStr {
    }

    #[pymethod]
-    fn lstrip(&self, chars: OptionalOption<PyStrRef>) -> String {
-        self.as_str()
-            .py_strip(
-                chars,
-                |s, chars| s.trim_start_matches(|c| chars.contains(c)),
-                |s| s.trim_start(),
-            )
-            .to_owned()
    }

    #[pymethod]
-    fn rstrip(&self, chars: OptionalOption<PyStrRef>) -> String {
-        self.as_str()
-            .py_strip(
-                chars,
-                |s, chars| s.trim_end_matches(|c| chars.contains(c)),
-                |s| s.trim_end(),
-            )
-            .to_owned()
    }

    #[pymethod]