From 0fd557647d9957542a68972854a227d2def5f5f3 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Wed, 25 Dec 2013 14:24:35 +0200
Subject: Issue #20058: sys.stdin.readline() in IDLE now always returns only
 one line.

---
 Lib/idlelib/PyShell.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'Lib/idlelib/PyShell.py')

diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
index 6674f4ecdd..55fd3574d4 100755
--- a/Lib/idlelib/PyShell.py
+++ b/Lib/idlelib/PyShell.py
@@ -1381,6 +1381,9 @@ class PseudoInputFile(PseudoFile):
         line = self._line_buffer or self.shell.readline()
         if size < 0:
             size = len(line)
+        eol = line.find('\n', 0, size)
+        if eol >= 0:
+            size = eol + 1
         self._line_buffer = line[size:]
         return line[:size]
 
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