some more replay test fixes

tests/test_replay.py

@@ -12,7 +12,7 @@ from xonsh.shell import Shell
 from xonsh.replay import Replayer
 
 SHELL = Shell()
-
+HISTDIR = os.path.join(os.path.dirname(__file__), 'histories')
 
 def run_replay(re_file):
     with swap(builtins, '__xonsh_shell__', SHELL):
@@ -27,6 +27,7 @@ def cleanup_replay(hist):
     if os.path.isfile(fname):
         os.remove(fname)
 
+
 @contextmanager
 def a_replay(re_file):
     hist = run_replay(re_file)
@@ -35,14 +36,16 @@ def a_replay(re_file):
 
 
 def test_echo():
-    f = os.path.join('histories', 'echo.json')
+    f = os.path.join(HISTDIR, 'echo.json')
     with a_replay(f) as hist:
         yield assert_equal, 2, len(hist)
 
+
 def test_reecho():
-    f = os.path.join('histories', 'echo.json')
+    f = os.path.join(HISTDIR, 'echo.json')
     with a_replay(f) as hist:
         yield assert_equal, 2, len(hist)
 
+
 if __name__ == '__main__':
     nose.runmodule()

xonsh/lazyjson.py

@@ -1,5 +1,6 @@
 """Implements a lazy JSON file class that wraps around json data."""
 from __future__ import print_function, unicode_literals
+import io
 import weakref
 from contextlib import contextmanager
 from collections import Mapping, Sequence
@@ -218,7 +219,7 @@ class LazyJSON(Node):
 
     def close(self):
         """Close the file handle, if appropriate."""
-        if not self.reopen:
+        if not self.reopen and isinstance(self._f, io.IOBase):
             self._f.close()
 
     @contextmanager