text: #!/usr/bin/env python
  
  class Command:
  	"""Class that contains an external command execution"""
  
  	def __init__(self, config ):
  		self.config = config
  		self.name = config['name']
  		self.input = config['input']
  		self.output = ''
  		self.error = ''
  
  	def execute(self):
  		"""	Runs this command and saves the stdout and stderr as strings """
  		args = [self.name]+self.input
  		print ('Executing command:'+' '.join(args) )
  		try:
  			self.output = subprocess.check_output(args, 
  							stderr=subprocess.STDOUT)
  		except subprocess.CalledProcessError as e:
  			print 'Error:',e.returncode, e.cmd, e.output
  			#TODO check if error can be resolved		
  
  	def getOutput(self):
  		return self.output
  
  	def getError(self)
  		return self.error