From b5e4d62da4cb76df4894ac506f804721da492c76 Mon Sep 17 00:00:00 2001
From: Jeong Yunwon <jeong@youknowone.org>
Date: Mon, 11 Jul 2022 05:17:45 +0900
Subject: [PATCH] Fix doctest for current version of RustPython

---
 Lib/doctest.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Lib/doctest.py b/Lib/doctest.py
index 4ec90d97b..65466b498 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -102,7 +102,7 @@ import re
 import sys
 import traceback
 import unittest
-from io import StringIO
+from io import StringIO  # XXX: RUSTPYTHON; , IncrementalNewlineDecoder
 from collections import namedtuple
 
 TestResults = namedtuple('TestResults', 'failed attempted')
@@ -229,7 +229,10 @@ def _load_testfile(filename, package, module_relative, encoding):
             file_contents = file_contents.decode(encoding)
             # get_data() opens files as 'rb', so one must do the equivalent
             # conversion as universal newlines would do.
-            return _newline_convert(file_contents), filename
+
+            # TODO: RUSTPYTHON; use _newline_convert once io.IncrementalNewlineDecoder is implemented
+            return file_contents.replace(os.linesep, '\n'), filename
+            # return _newline_convert(file_contents), filename
     with open(filename, encoding=encoding) as f:
         return f.read(), filename