From e1e48ea29bc04cff9739f6ab4cb991604060a55f Mon Sep 17 00:00:00 2001
From: Antoine Pitrou <solipsis@pitrou.net>
Date: Fri, 15 Aug 2008 00:05:08 +0000
Subject: [PATCH] Fix build from a blank checkout by using the _thread module
 instead of threading in io.py (thanks Christian!)

---
 Lib/io.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Lib/io.py b/Lib/io.py
index 3e48eb1f66f..18680cad534 100644
--- a/Lib/io.py
+++ b/Lib/io.py
@@ -61,7 +61,7 @@ import sys
 import codecs
 import _fileio
 import warnings
-import threading
+from _thread import allocate_lock as Lock
 
 # open() uses st_blksize whenever we can
 DEFAULT_BUFFER_SIZE = 8 * 1024  # bytes
@@ -896,7 +896,7 @@ class BufferedReader(_BufferedIOMixin):
         _BufferedIOMixin.__init__(self, raw)
         self.buffer_size = buffer_size
         self._reset_read_buf()
-        self._read_lock = threading.Lock()
+        self._read_lock = Lock()
 
     def _reset_read_buf(self):
         self._read_buf = b""
@@ -1022,7 +1022,7 @@ class BufferedWriter(_BufferedIOMixin):
                                 if max_buffer_size is None
                                 else max_buffer_size)
         self._write_buf = bytearray()
-        self._write_lock = threading.Lock()
+        self._write_lock = Lock()
 
     def write(self, b):
         if self.closed: