From 138ad5066d5e523eb81cabd4a05ed51d6664210d Mon Sep 17 00:00:00 2001
From: Nadeem Vawda <nadeem.vawda@gmail.com>
Date: Mon, 1 Oct 2012 23:04:11 +0200
Subject: Fix error handling in new fast path of BZ2File.readline().

---
 Lib/bz2.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Lib/bz2.py b/Lib/bz2.py
index 87bed21..da19e27 100644
--- a/Lib/bz2.py
+++ b/Lib/bz2.py
@@ -323,6 +323,7 @@ class BZ2File(io.BufferedIOBase):
             raise TypeError("Integer argument expected")
         size = size.__index__()
         with self._lock:
+            self._check_can_read()
             # Shortcut for the common case - the whole line is in the buffer.
             if size < 0:
                 end = self._buffer.find(b"\n", self._buffer_offset) + 1
-- 
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