[3.12] gh-121657: Display correct error message for yield from outsid… (GH-121769)

(cherry picked from commit 178e44de8f023be7a5dc400044ab61983b191f24)

Co-authored-by: Gregor <36135323+gege-hoho@users.noreply.github.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>

diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py
index 83ca8a6096c646ccc16e65a295b9e95fd1c8551d..6bd78887bff66f320b6717fe753020079f2950ce 100644 (file)
--- a/Lib/test/test_generators.py
+++ b/Lib/test/test_generators.py
@@ -2145,6 +2145,11 @@ Traceback (most recent call last):
   ...
 SyntaxError: 'yield' outside function
 
+>>> yield from [1,2]
+Traceback (most recent call last):
+  ...
+SyntaxError: 'yield from' outside function
+
 >>> def f(): x = yield = y
 Traceback (most recent call last):
   ...

diff --git a/Misc/NEWS.d/next/Core and Builtins/2024-07-13-12-27-31.gh-issue-121657.wgOYLw.rst b/Misc/NEWS.d/next/Core and Builtins/2024-07-13-12-27-31.gh-issue-121657.wgOYLw.rst
new file mode 100644 (file)
index 0000000..cb18629
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2024-07-13-12-27-31.gh-issue-121657.wgOYLw.rst
@@ -0,0 +1,2 @@
+Improve the :exc:`SyntaxError` message if the user tries to use
+:keyword:`yield from <yield>` outside a function.

diff --git a/Python/compile.c b/Python/compile.c
index bd1650e23378663b48f057ba0d30c7a12445b339..81464a974f59b73d0f6f101c0c23c2458c379adb 100644 (file)
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -6117,7 +6117,7 @@ compiler_visit_expr1(struct compiler *c, expr_ty e)
         break;
     case YieldFrom_kind:
         if (!_PyST_IsFunctionLike(c->u->u_ste)) {
-            return compiler_error(c, loc, "'yield' outside function");
+            return compiler_error(c, loc, "'yield from' outside function");
         }
         if (c->u->u_scope_type == COMPILER_SCOPE_ASYNC_FUNCTION) {
             return compiler_error(c, loc, "'yield from' inside async function");