gh-105879: Add support for keyword arguments to eval and exec

Lib/test/test_builtin.py

@@ -46,6 +46,8 @@
 x, y = 1e16, 2.9999 # use temporary values to defeat peephole optimizer
 HAVE_DOUBLE_ROUNDING = (x + y == 1e16 + 4)
 
+# used as proof of globals being used
+A_GLOBAL_VALUE = 123
 
 class Squares:
 
@@ -643,6 +645,11 @@ def __getitem__(self, key):
                 raise ValueError
         self.assertRaises(ValueError, eval, "foo", {}, X())
 
+    def test_eval_kwargs(self):
+        data = {"A_GLOBAL_VALUE": 456}
+        self.assertEqual(eval("globals()['A_GLOBAL_VALUE']", globals=data), 456)
+        self.assertEqual(eval("globals()['A_GLOBAL_VALUE']", locals=data), 123)
+
     def test_general_eval(self):
         # Tests that general mappings can be used for the locals argument
 
@@ -736,6 +743,19 @@ def test_exec(self):
             del l['__builtins__']
         self.assertEqual((g, l), ({'a': 1}, {'b': 2}))
 
+    def test_exec_kwargs(self):
+        g = {}
+        exec('global z\nz = 1', globals=g)
+        if '__builtins__' in g:
+            del g['__builtins__']
+        self.assertEqual(g, {'z': 1})
+
+        # if we only set locals, the global assignment will not
+        # reach this locals dictionary
+        g = {}
+        exec('global z\nz = 1', locals=g)
+        self.assertEqual(g, {})
+
     def test_exec_globals(self):
         code = compile("print('Hello World!')", "", "exec")
         # no builtin function

Misc/NEWS.d/next/Core and Builtins/2023-06-18-00-27-57.gh-issue-105879.dPw78k.rst

@@ -0,0 +1 @@
+Allow keyword arguments to be used when calling :meth:`~eval` and :meth:`~exec`.

Python/bltinmodule.c

@@ -891,7 +891,6 @@ eval as builtin_eval
     source: object
     globals: object = None
     locals: object = None
-    /
 
 Evaluate the given source in the context of globals and locals.
 
@@ -905,7 +904,7 @@ If only globals is given, locals defaults to it.
 static PyObject *
 builtin_eval_impl(PyObject *module, PyObject *source, PyObject *globals,
                   PyObject *locals)
-/*[clinic end generated code: output=0a0824aa70093116 input=11ee718a8640e527]*/
+/*[clinic end generated code: output=0a0824aa70093116 input=4cbfb23dd7cbe2a9]*/
 {
     PyObject *result, *source_copy;
     const char *str;
@@ -980,7 +979,6 @@ exec as builtin_exec
     source: object
     globals: object = None
     locals: object = None
-    /
     *
     closure: object(c_default="NULL") = None
 
@@ -998,11 +996,12 @@ when source is a code object requiring exactly that many cellvars.
 static PyObject *
 builtin_exec_impl(PyObject *module, PyObject *source, PyObject *globals,
                   PyObject *locals, PyObject *closure)
-/*[clinic end generated code: output=7579eb4e7646743d input=f13a7e2b503d1d9a]*/
+/*[clinic end generated code: output=7579eb4e7646743d input=99951d1832fece9e]*/
 {
     PyObject *v;
 
     if (globals == Py_None) {
+
         globals = PyEval_GetGlobals();
         if (locals == Py_None) {
             locals = PyEval_GetLocals();