python · markshannon · Mar 15, 2021 · Mar 14, 2021
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
@@ -786,6 +786,14 @@ def or_false(x):
                self.assertIn('LOAD_', opcodes[0].opname)
                self.assertEqual('RETURN_VALUE', opcodes[1].opname)

+    def test_lineno_procedure_call(self):
+        def call():
+            (
+                print()
+            )
+        line1 = call.__code__.co_firstlineno + 1
+        assert line1 not in [line for (_, _, line) in call.__code__.co_lines()]
+
    def test_lineno_after_implicit_return(self):
        TRUE = True
        # Don't use constant True or False, as compiler will remove test

diff --git a/Python/compile.c b/Python/compile.c
@@ -3397,6 +3397,8 @@ compiler_visit_stmt_expr(struct compiler *c, expr_ty value)
    }

    VISIT(c, expr, value);
+    /* Mark POP_TOP as artificial */
+    c->u->u_lineno = -1;
    ADDOP(c, POP_TOP);
    return 1;
 }