diff --git a/utils/blmplay.py b/utils/blmplay.py
index 8c75f5e..6ff970d 100644
--- a/utils/blmplay.py
+++ b/utils/blmplay.py
@@ -7,62 +7,67 @@ import blup.animation
 import blup.output
 
 def printUsage(errMsg=None):
-	if errMsg is not None:
-		print('error: %s\n' % (errMsg))
-	print('usage: %s [OPTIONS] FILENAME' % (sys.argv[0]))
-	print('supported options:')
-	print('  -o OUTPUT         where to output the frames (default: shell)')
-	print('  --output OUTPUT\n')
-	print('  -h                print this text')
-	print('  --help')
+    if errMsg is not None:
+        print('error: %s\n' % (errMsg))
+    print('usage: %s [OPTIONS] FILENAME' % (sys.argv[0]))
+    print('supported options:')
+    print('  -o OUTPUT         where to output the frames (default: shell)')
+    print('  --no-loop         play animation only once')
+    print('  --output OUTPUT\n')
+    print('  -h                print this text')
+    print('  --help')
 
 def main():
-	try:
-		(opts, args) = getopt.gnu_getopt(sys.argv, 'ho:', ['help', 'output='])
-		opts = dict(opts)
-	except getopt.GetoptError as e:
-		printUsage(e.msg)
-		sys.exit(1)
+    try:
+        (opts, args) = getopt.gnu_getopt(sys.argv, 'ho:', ['help', 'output=', 'no-loop'])
+        opts = dict(opts)
+    except getopt.GetoptError as e:
+        printUsage(e.msg)
+        sys.exit(1)
 
-	if '--help' in opts:
-		printUsage()
-		sys.exit(0)
+    if '--help' in opts:
+        printUsage()
+        sys.exit(0)
 
-	if '-o' in opts:
-		output = opts['-o']
-	elif '--output' in opts:
-		output = opts['--output']
-	else:
-		output = 'shell'
+    if '-o' in opts:
+        output = opts['-o']
+    elif '--output' in opts:
+        output = opts['--output']
+    else:
+        output = 'shell'
 
-	try:
-		out = blup.output.getOutput(output)
-	except blup.output.IllegalOutputSpecificationError:
-		print('illegal output specification')
-		print('available outputs:')
-		print(blup.output.getOutputDescriptions())
-		sys.exit(1)
-	except Exception as e:
-		print('could not initialize output: %s' % (str(e)))
-		sys.exit(1)
-	
-	if len(args) != 2:
-		printUsage()
-		sys.exit(1)
+    loop = '--no-loop' not in opts
 
-	try:
-		anim = blup.animation.load(args[1])
-	except blup.animation.AnimationFileError:
-		print('could not load animation')
-		sys.exit(1)
+    try:
+        out = blup.output.getOutput(output)
+    except blup.output.IllegalOutputSpecificationError:
+        print('illegal output specification')
+        print('available outputs:')
+        print(blup.output.getOutputDescriptions())
+        sys.exit(1)
+    except Exception as e:
+        print('could not initialize output: %s' % (str(e)))
+        sys.exit(1)
 
-	player = blup.animation.AnimationPlayer()
-	try:
-		while True:
-			player.play(anim, out)
-	except KeyboardInterrupt:
-		sys.exit(0)
+    if len(args) != 2:
+        printUsage()
+        sys.exit(1)
+
+    try:
+        anim = blup.animation.load(args[1])
+    except blup.animation.AnimationFileError:
+        print('could not load animation')
+        sys.exit(1)
+
+    player = blup.animation.AnimationPlayer()
+    try:
+        while True:
+            player.play(anim, out)
+            if not loop:
+                break
+    except KeyboardInterrupt:
+        sys.exit(0)
 
 if __name__ == "__main__":
-	main()
+    main()