micropython: add micropython component

components/language/micropython/tests/basics/getattr.py

@@ -0,0 +1,28 @@
+# test __getattr__
+
+class A:
+    def __init__(self, d):
+        self.d = d
+
+    def __getattr__(self, attr):
+        return self.d[attr]
+
+a = A({'a':1, 'b':2})
+print(a.a, a.b)
+
+# test that any exception raised in __getattr__ propagates out
+class A:
+    def __getattr__(self, attr):
+        if attr == "value":
+            raise ValueError(123)
+        else:
+            raise AttributeError(456)
+a = A()
+try:
+    a.value
+except ValueError as er:
+    print(er)
+try:
+    a.attr
+except AttributeError as er:
+    print(er)