fix #455

python/operator.py

@@ -47,3 +47,9 @@ def ior(a, b): a |= b; return a
 def ixor(a, b): a ^= b; return a
 def ilshift(a, b): a <<= b; return a
 def irshift(a, b): a >>= b; return a
+
+class attrgetter:
+    def __init__(self, attr):
+        self.attr = attr
+    def __call__(self, obj):
+        return getattr(obj, self.attr)

tests/740_operator.py

@@ -50,3 +50,14 @@ assert op.ior(0b01, 0b11) == 0b11
 assert op.ixor(0b01, 0b11) == 0b10
 assert op.ilshift(0b01, 1) == 0b10
 assert op.irshift(0b10, 1) == 0b01
+
+
+# https://github.com/pocketpy/pocketpy/issues/455
+class Person:
+    def __init__(self, name, age):
+        self.name = name
+        self.age = age
+
+person = Person("Alice", 30)
+res = op.attrgetter('name')(person)
+assert res == "Alice"