From aaea1b352b6ccfd68042cf54580363adb913f999 Mon Sep 17 00:00:00 2001
From: Christian Herdtweck <christian.herdtweck@intra2net.com>
Date: Tue, 26 Jul 2016 09:58:59 +0200
Subject: [PATCH] need to check whether _Stream has an _extfileobj, otherwise 2nd close will raise OSError

---
 deltatar/tarfile.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/deltatar/tarfile.py b/deltatar/tarfile.py
index b973881..d548f92 100644
--- a/deltatar/tarfile.py
+++ b/deltatar/tarfile.py
@@ -2749,7 +2749,8 @@ class TarFile(object):
 
                 # close current volume file (even if fileobj is external)
                 self.fileobj.close()
-                if isinstance(self.fileobj, _Stream):
+                if isinstance(self.fileobj, _Stream) \
+                        and self.fileobj._extfileobj:
                     # _Stream.close() never closes external fileobj
                     self._dbg(3, 'closing _Stream\'s external fileobj')
                     self.fileobj.fileobj.close()
-- 
1.7.1