Tip Program

[PatrickFCrowley]

Hello! This is actually my first time posting on a forum, ever haha. Well I'm going through a book on python, thought I understood naming variables, but found that I don't know how to fix NameError: name 'tip_15' is not defined

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# Tip Buddy # Have User enter bill amount # output tip amount and # bill total # Patrick Crowley # 8/7/2017   # gather information from user bill = float (input ("Please enter amount shown on bill."))   # output tip amount by 15% and 20%   tip20 = bill * 0.2 tip15 = bill * 0.15 # 15% print ("\n\nIf your service was satisfactory today,", \ tip_15 , "is a resonable tip Based on 15%") print ("Your total would be:", bill + tip_15)   #20

[buran]

tip15 on line#14 vs tip_15 on line#18
do you see the difference?

[martan45]

If you look at the name you gave to bill * 0.15 is 'tip15'. When you use it again you use 'tip_15'. If you get rid of the underscore on the last line then it should work.

[PatrickFCrowley]

Ohh yes i do see it now... thank you. i actually went through and changed the variable names completely and it worked, but i will triple check next time so i dont sound like a dope.