diff options
| -rw-r--r-- | Lib/_pyio.py | 2 | ||||
| -rw-r--r-- | Lib/test/test_memoryio.py | 9 | ||||
| -rw-r--r-- | Misc/NEWS | 2 |
3 files changed, 12 insertions, 1 deletions
diff --git a/Lib/_pyio.py b/Lib/_pyio.py index d6eee79..edfb9b9 100644 --- a/Lib/_pyio.py +++ b/Lib/_pyio.py @@ -2052,7 +2052,7 @@ class StringIO(TextIOWrapper): def __init__(self, initial_value="", newline="\n"): super(StringIO, self).__init__(BytesIO(), encoding="utf-8", - errors="strict", + errors="surrogatepass", newline=newline) # Issue #5645: make universal newlines semantics the same as in the # C version, even under Windows. diff --git a/Lib/test/test_memoryio.py b/Lib/test/test_memoryio.py index 4de4f65..d4135d5 100644 --- a/Lib/test/test_memoryio.py +++ b/Lib/test/test_memoryio.py @@ -609,6 +609,15 @@ class PyStringIOTest(MemoryTestMixin, MemorySeekTestMixin, UnsupportedOperation = pyio.UnsupportedOperation EOF = "" + def test_lone_surrogates(self): + # Issue #20424 + memio = self.ioclass('\ud800') + self.assertEqual(memio.read(), '\ud800') + + memio = self.ioclass() + memio.write('\ud800') + self.assertEqual(memio.getvalue(), '\ud800') + class PyStringIOPickleTest(TextIOTestMixin, unittest.TestCase): """Test if pickle restores properly the internal state of StringIO. @@ -13,6 +13,8 @@ Core and Builtins Library ------- +- Issue #20424: Python implementation of io.StringIO now supports lone surrogates. + - Issue #20308: inspect.signature now works on classes without user-defined __init__ or __new__ methods. |