implement attrwrapper.has_key

src/runtime/types.cpp

@@ -2511,6 +2511,12 @@ public:
         return r ? True : False;
     }
 
+    static Box* hasKey(Box* _self, Box* _key) {
+        if (PyErr_WarnPy3k("dict.has_key() not supported in 3.x; use the in operator", 1) < 0)
+            throwCAPIException();
+        return contains<CXX>(_self, _key);
+    }
+
     static int sq_contains(Box* _self, Box* _key) noexcept {
         Box* rtn = contains<CAPI>(_self, _key);
         if (!rtn)
@@ -4043,7 +4049,9 @@ void setupRuntime() {
     attrwrapper_cls->giveAttr("__str__",
                               new BoxedFunction(FunctionMetadata::create((void*)AttrWrapper::str, UNKNOWN, 1)));
     attrwrapper_cls->giveAttr(
-        "__contains__", new BoxedFunction(FunctionMetadata::create((void*)AttrWrapper::contains<CXX>, UNKNOWN, 2)));
+        "__contains__", new BoxedFunction(FunctionMetadata::create((void*)AttrWrapper::contains<CXX>, BOXED_BOOL, 2)));
+    attrwrapper_cls->giveAttr("has_key",
+                              new BoxedFunction(FunctionMetadata::create((void*)AttrWrapper::hasKey, BOXED_BOOL, 2)));
     attrwrapper_cls->giveAttr("__eq__",
                               new BoxedFunction(FunctionMetadata::create((void*)AttrWrapper::eq, UNKNOWN, 2)));
     attrwrapper_cls->giveAttr("__ne__",

test/tests/builtins.py

@@ -72,6 +72,7 @@ except TypeError, e:
 
 print globals().get("not a real variable")
 print globals().get("not a real variable", 1)
+print globals().has_key("C"), globals().has_key("CC")
 
 print hex(12345)
 print oct(234)