diff --git a/Lib/test/test_csv.py b/Lib/test/test_csv.py index 97b9bba24bcbca..282cff4344b77f 100644 --- a/Lib/test/test_csv.py +++ b/Lib/test/test_csv.py @@ -297,13 +297,18 @@ def test_read_oddinputs(self): [b'abc'], None) def test_read_eol(self): - self._read_test(['a,b'], [['a','b']]) - self._read_test(['a,b\n'], [['a','b']]) - self._read_test(['a,b\r\n'], [['a','b']]) - self._read_test(['a,b\r'], [['a','b']]) - self.assertRaises(csv.Error, self._read_test, ['a,b\rc,d'], []) - self.assertRaises(csv.Error, self._read_test, ['a,b\nc,d'], []) - self.assertRaises(csv.Error, self._read_test, ['a,b\r\nc,d'], []) + self._read_test(['a,b', 'c,d'], [['a','b'], ['c','d']]) + self._read_test(['a,b\n', 'c,d\n'], [['a','b'], ['c','d']]) + self._read_test(['a,b\r\n', 'c,d\r\n'], [['a','b'], ['c','d']]) + self._read_test(['a,b\r', 'c,d\r'], [['a','b'], ['c','d']]) + + errmsg = "with newline=''" + with self.assertRaisesRegex(csv.Error, errmsg): + next(csv.reader(['a,b\rc,d'])) + with self.assertRaisesRegex(csv.Error, errmsg): + next(csv.reader(['a,b\nc,d'])) + with self.assertRaisesRegex(csv.Error, errmsg): + next(csv.reader(['a,b\r\nc,d'])) def test_read_eof(self): self._read_test(['a,"'], [['a', '']]) diff --git a/Modules/_csv.c b/Modules/_csv.c index ae6b6457ffad9a..d45a15aa8c255a 100644 --- a/Modules/_csv.c +++ b/Modules/_csv.c @@ -837,7 +837,8 @@ parse_process_char(ReaderObj *self, _csvstate *module_state, Py_UCS4 c) self->state = START_RECORD; else { PyErr_Format(module_state->error_obj, - "new-line character seen in unquoted field - do you need to open the file in universal-newline mode?"); + "new-line character seen in unquoted field - " + "do you need to open the file with newline=''?"); return -1; } break;