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| author | Lysandros Nikolaou <lisandrosnik@gmail.com> | 2023-08-15 11:26:42 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-08-15 11:26:42 (GMT) |
| commit | d66bc9e8a7a8d6774d912a4b9d151885c4d8de1d (patch) | |
| tree | 1784e3f3647f1b47494ad477b16394cc5316159a | |
| parent | 13c36dc9ae5240124932137de4a94d81292c6c5f (diff) | |
| download | cpython-d66bc9e8a7a8d6774d912a4b9d151885c4d8de1d.zip cpython-d66bc9e8a7a8d6774d912a4b9d151885c4d8de1d.tar.gz cpython-d66bc9e8a7a8d6774d912a4b9d151885c4d8de1d.tar.bz2 | |
gh-107967: Fix infinite recursion on invalid escape sequence warning (#107968)
| -rw-r--r-- | Lib/test/test_fstring.py | 10 | ||||
| -rw-r--r-- | Parser/tokenizer.c | 3 |
2 files changed, 13 insertions, 0 deletions
diff --git a/Lib/test/test_fstring.py b/Lib/test/test_fstring.py index cb14bba..16f0197 100644 --- a/Lib/test/test_fstring.py +++ b/Lib/test/test_fstring.py @@ -1673,5 +1673,15 @@ print(f'''{{ self.assertEqual(stdout.decode('utf-8').strip().replace('\r\n', '\n').replace('\r', '\n'), "3\n=3") + def test_syntax_warning_infinite_recursion_in_file(self): + with temp_cwd(): + script = 'script.py' + with open(script, 'w') as f: + f.write(r"print(f'\{1}')") + + _, stdout, stderr = assert_python_ok(script) + self.assertIn(rb'\1', stdout) + self.assertEqual(len(stderr.strip().splitlines()), 2) + if __name__ == '__main__': unittest.main() diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c index 5a42f6f..b10c9f1 100644 --- a/Parser/tokenizer.c +++ b/Parser/tokenizer.c @@ -1539,6 +1539,9 @@ error: static int warn_invalid_escape_sequence(struct tok_state *tok, int first_invalid_escape_char) { + if (!tok->report_warnings) { + return 0; + } PyObject *msg = PyUnicode_FromFormat( "invalid escape sequence '\\%c'", |