Apply upstream fix for EINTR handling in test_vterm test case

python-urwid-test_vterm-EINTR.patch

@@ -0,0 +1,49 @@
+commit f68f2cf089cfd5ec45863baf59a91d5aeb0cf5c3
+Author: Mike Gilbert <floppym@gentoo.org>
+Date:   Sat Jun 3 14:53:51 2017 -0400
+
+    test_vterm: handle EINTR when reading from pipe
+
+    Fixes: https://github.com/urwid/urwid/issues/230
+
+diff --git a/urwid/tests/test_vterm.py b/urwid/tests/test_vterm.py
+index 4dadfcc..075c653 100644
+--- a/urwid/tests/test_vterm.py
++++ b/urwid/tests/test_vterm.py
+@@ -18,6 +18,7 @@
+ #
+ # Urwid web site: http://excess.org/urwid/
+
++import errno
+ import os
+ import sys
+ import unittest
+@@ -28,7 +29,6 @@ from urwid import vterm
+ from urwid import signals
+ from urwid.compat import B
+
+-
+ class DummyCommand(object):
+     QUITSTRING = B('|||quit|||')
+
+@@ -41,12 +41,20 @@ class DummyCommand(object):
+         stdout.write(B('\x1bc'))
+
+         while True:
+-            data = os.read(self.reader, 1024)
++            data = self.read(1024)
+             if self.QUITSTRING == data:
+                 break
+             stdout.write(data)
+             stdout.flush()
+
++    def read(self, size):
++        while True:
++            try:
++                return os.read(self.reader, size)
++            except OSError as e:
++                if e.errno != errno.EINTR:
++                    raise
++
+     def write(self, data):
+         os.write(self.writer, data)