Comments are not done with '''
or """
that is a way to have a string go across multiple lines how you comment is by doing #
for example
#print ("hello world")
#this is a comment
#so is this
#I am a comment
print('I still work')
If you have multiple lines to comment out what you would have to do is use your IDE highlight the text and dependent on your keyboard or computer you press CONTROL+/
or COMMAND+/
I know that works for sublime text 2 but I am not sure about python's default IDLE
Good luck with your future coding !