py: Implement base class lookup, issubclass, isinstance.

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/basics/tests/class3.py b/tests/basics/tests/class3.py
new file mode 100644
index 000000000..3b4f0bb90
--- /dev/null
+++ b/tests/basics/tests/class3.py
@@ -0,0 +1,24 @@
+# inheritance
+
+class A:
+    def a():
+        print('A.a() called')
+
+class B(A):
+    pass
+
+print(type(A))
+print(type(B))
+
+print(issubclass(A, A))
+print(issubclass(A, B))
+print(issubclass(B, A))
+print(issubclass(B, B))
+
+print(isinstance(A(), A))
+print(isinstance(A(), B))
+print(isinstance(B(), A))
+print(isinstance(B(), B))
+
+A.a()
+B.a()