From 11446485433ad65111d6a10f716833c2455da5d1 Mon Sep 17 00:00:00 2001
From: Antoine Pitrou <solipsis@pitrou.net>
Date: Sat, 4 Apr 2009 14:09:30 +0000
Subject: Fix test_memoryio under Windows

---
 Lib/_pyio.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Lib/_pyio.py b/Lib/_pyio.py
index 66cdc20..b2d17e9 100644
--- a/Lib/_pyio.py
+++ b/Lib/_pyio.py
@@ -1829,6 +1829,10 @@ class StringIO(TextIOWrapper):
                                        encoding="utf-8",
                                        errors="strict",
                                        newline=newline)
+        # Issue #5645: make universal newlines semantics the same as in the
+        # C version, even under Windows.
+        if newline is None:
+            self._writetranslate = False
         if initial_value:
             if not isinstance(initial_value, str):
                 initial_value = str(initial_value)
-- 
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