bpo-29240: readline now ignores the UTF-8 Mode (#5145)

Add new fuctions ignoring the UTF-8 mode:

* _Py_DecodeCurrentLocale()
* _Py_EncodeCurrentLocale()
* _PyUnicode_DecodeCurrentLocaleAndSize()
* _PyUnicode_EncodeCurrentLocale()

Modify the readline module to use these functions.

Re-enable test_readline.test_nonascii().

1 files changed, 3 insertions, 2 deletions

diff --git a/Modules/readline.c b/Modules/readline.c
index 811fca8cd9..8db4cfd015 100644
--- a/Modules/readline.c
+++ b/Modules/readline.c
@@ -132,13 +132,14 @@ static PyModuleDef readlinemodule;
 static PyObject *
 encode(PyObject *b)
 {
-    return PyUnicode_EncodeLocale(b, "surrogateescape");
+    return _PyUnicode_EncodeCurrentLocale(b, "surrogateescape");
 }
 
 static PyObject *
 decode(const char *s)
 {
-    return PyUnicode_DecodeLocale(s, "surrogateescape");
+    return _PyUnicode_DecodeCurrentLocaleAndSize(s, strlen(s),
+                                                 "surrogateescape");
 }