Close files

demo/demo

@@ -83,7 +83,8 @@ if args.duration:
     signal.signal(signal.SIGALRM, handler)
     signal.alarm(args.duration)
 
-exec(compile(open("fixnemu.py", "rb").read(), "fixnemu.py", 'exec'))
+with open('fixnemu.py', 'rb') as f:
+    exec(compile(f.read(), 'fixnemu.py', 'exec'))
 
 
 class Re6stNode(nemu.Node):

demo/py

@@ -30,4 +30,5 @@ def __file__():
 
     return os.path.join(sys.path[0], sys.argv[1])
 __file__ = __file__()
-exec(compile(open(__file__, "rb").read(), __file__, 'exec'))
+with open(__file__) as f:
+    exec(compile(f.read(), __file__, 'exec'))
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