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				@@ -55,7 +55,7 @@ class Demeter(object): 
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				 					self.config[item] = self.readConfig(config, item) 
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				 				return True 
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				 			else: 
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				-				print filename + ' is not exists' 
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				+				Demeter.echo(filename + ' is not exists') 
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				 				sys.exit() 
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				 	@staticmethod 
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				@@ -279,7 +279,7 @@ class Demeter(object): 
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				 			#self.request.finish() 
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				 			raise Finish() 
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				 		else: 
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				-			print string 
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				+			self.echo(string) 
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				 			#os._exit(0) 
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				 class File(object): 
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				@@ -357,10 +357,10 @@ class Shell(object): 
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				 		else: 
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				 			popen  = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE) 
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				 			output = '' 
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				-			print string 
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				+			Demeter.echo(string) 
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				 			while True: 
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				 				output = popen.stdout.readline() 
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				-				print output 
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				+				Demeter.echo(output) 
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				 				if popen.poll() is not None: 
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				 					break 
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				 			return output 
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