text: #python exceptions let you deal with
  #unexpected results
  
  try:
  	print(a)	#this will throw an exception since a is not defined
  except:
  	print("a is not defined")
  	
  #There are specific errors to help with cases
  try:
  	print(a)	#this will throw an exception since a is not defined
  except NameError:
  	print("a is still not defined")
  except:
  	print("something went wrong")
  	
  	#this will break our program
  	#since a is not defined
  	print(a)
  	
  #Use a try statement to make a trial. in this case it will not work.