#Python 3.5.2 (default, Nov 12 2018, 13:43:14) 
#[GCC 5.4.0 20160609] on linux
#Type "help", "copyright", "credits" or "license" for more information.
#>>> hello
#Traceback (most recent call last):
#  File "<stdin>", line 1, in <module>
#NameError: name 'hello' is not defined
#>>> cheese
#Traceback (most recent call last):
#  File "<stdin>", line 1, in <module>
#NameError: name 'cheese' is not defined
#>>> 
