[Python-checkins] gh-96611: Fix error message for invalid UTF-8 in mid-multiline string (GH-96623)
miss-islington
webhook-mailer at python.org
Tue Sep 6 19:40:22 EDT 2022
https://github.com/python/cpython/commit/bb0dab5c48de0fabec6b3eb27316394e3b65ee2c
commit: bb0dab5c48de0fabec6b3eb27316394e3b65ee2c
branch: 3.11
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: miss-islington <31488909+miss-islington at users.noreply.github.com>
date: 2022-09-06T16:40:17-07:00
summary:
gh-96611: Fix error message for invalid UTF-8 in mid-multiline string (GH-96623)
(cherry picked from commit 05692c67c51b78a5a5a7bb61d646519025e38015)
Co-authored-by: Michael Droettboom <mdboom at gmail.com>
files:
A Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-22-13.gh-issue-96611.14wIX8.rst
M Lib/test/test_source_encoding.py
M Parser/tokenizer.c
diff --git a/Lib/test/test_source_encoding.py b/Lib/test/test_source_encoding.py
index 8d7b573c7e91..d37914dcd748 100644
--- a/Lib/test/test_source_encoding.py
+++ b/Lib/test/test_source_encoding.py
@@ -148,6 +148,18 @@ def test_error_from_string(self):
self.assertTrue(c.exception.args[0].startswith(expected),
msg=c.exception.args[0])
+ def test_file_parse_error_multiline(self):
+ # gh96611:
+ with open(TESTFN, "wb") as fd:
+ fd.write(b'print("""\n\xb1""")\n')
+
+ try:
+ retcode, stdout, stderr = script_helper.assert_python_failure(TESTFN)
+
+ self.assertGreater(retcode, 0)
+ self.assertIn(b"Non-UTF-8 code starting with '\\xb1'", stderr)
+ finally:
+ os.unlink(TESTFN)
class AbstractSourceEncodingTest:
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-22-13.gh-issue-96611.14wIX8.rst b/Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-22-13.gh-issue-96611.14wIX8.rst
new file mode 100644
index 000000000000..08bd409bc9f9
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-22-13.gh-issue-96611.14wIX8.rst
@@ -0,0 +1,2 @@
+When loading a file with invalid UTF-8 inside a multi-line string, a correct
+SyntaxError is emitted.
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index b61ac120c869..b5ebcd044f89 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -1945,6 +1945,8 @@ tok_get(struct tok_state *tok, const char **p_start, const char **p_end)
/* Get rest of string */
while (end_quote_size != quote_size) {
c = tok_nextc(tok);
+ if (tok->done == E_DECODE)
+ break;
if (c == EOF || (quote_size == 1 && c == '\n')) {
assert(tok->multi_line_start != NULL);
// shift the tok_state's location into
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