#6373: SystemError in str.encode('latin1', 'surrogateescape')
if the string contains unpaired surrogates.
(In debug build, crash in assert())
This can happen with normal processing, if python starts with utf-8,
then calls sys.setfilesystemencoding('latin-1')
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 0d4a3dd..305289b 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -4201,10 +4201,12 @@
repsize = PyBytes_Size(repunicode);
if (repsize > 1) {
/* Make room for all additional bytes. */
+ respos = str - PyBytes_AS_STRING(res);
if (_PyBytes_Resize(&res, ressize+repsize-1)) {
Py_DECREF(repunicode);
goto onError;
}
+ str = PyBytes_AS_STRING(res) + respos;
ressize += repsize-1;
}
memcpy(str, PyBytes_AsString(repunicode), repsize);