[3.10] bpo-45408: Don't override previous tokenizer errors in the second parser pass (GH-28812). (GH-28813)
(cherry picked from commit 0219017df7ec41839fd0d56a3076b5f09c58d313)
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py
index 326f3ab..39fc7e9 100644
--- a/Lib/test/test_ast.py
+++ b/Lib/test/test_ast.py
@@ -1044,6 +1044,14 @@ def test_literal_eval_malformed_lineno(self):
with self.assertRaisesRegex(ValueError, msg):
ast.literal_eval(node)
+ def test_literal_eval_syntax_errors(self):
+ msg = "unexpected character after line continuation character"
+ with self.assertRaisesRegex(SyntaxError, msg):
+ ast.literal_eval(r'''
+ \
+ (\
+ \ ''')
+
def test_bad_integer(self):
# issue13436: Bad error message with invalid numeric values
body = [ast.ImportFrom(module='time',
diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index d04e5f5..4213dab 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -223,7 +223,7 @@ def testSyntaxErrorOffset(self):
check('x = "a', 1, 5)
check('lambda x: x = 2', 1, 1)
check('f{a + b + c}', 1, 2)
- check('[file for str(file) in []\n])', 2, 2)
+ check('[file for str(file) in []\n])', 1, 11)
check('a = « hello » « world »', 1, 5)
check('[\nfile\nfor str(file)\nin\n[]\n]', 3, 5)
check('[file for\n str(file) in []]', 2, 2)