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# Help please? TypeError: can't multiply sequence by non-int of type 'str'

 P: 7 HELP please? Im new to python. I made this code but I keep getting: subtotal= 'shirts' * 'amount' * 0.20 TypeError: can't multiply sequence by non-int of type 'str' the code is: shirts="12.99" amount=input("How many shirts would you like to purchase?") subtotal= 'shirts' * 'amount' * 0.20 percentage= 'shirts' * 'amount' * 0.20 total= 'subtotal' - 'percentage' Sep 6 '14 #1
11 Replies

 P: 9 When you put quotes or single quotes around the numbers or words, it reads them as a string of letters, not numbers. Remove the quotes. Expand|Select|Wrap|Line Numbers shirts=12.99   amount=input("How many shirts would you like to purchase?")   subtotal= shirts * amount * 0.20   percentage= shirts * amount * 0.20   total= subtotal - percentage   print subtotal, percentage, total   So the error is telling you that you can't use a string of letters to multiply with numbers. Whenever you put quote marks around something, it looks at it like it's a string. Sep 6 '14 #2

 P: 7 thank you. But i encountered another problem. doing so i get: How many shirts would you like to purchase?6 Execution Successful! it still doenst give me the total I need Sep 6 '14 #3

 P: 9 Add a print statement at the end like in my example above. Sep 6 '14 #4

 P: 7 thank you again for the help. I really appreciate it. I did as you said, all i got back is: print subtotal, percentage, total ^ SyntaxError: invalid syntax here is the code i put: shirts=12.99 amount=input("How many shirts would you like to purchase?") subtotal= shirts * amount * 0.20 percentage= shirts * amount * 0.20 total= subtotal - percentage print subtotal, percentage, total My goal here is to get a total. Im trying to get the percentage to be subtracted from the subtotal to get that number. if it makes sense. Sep 6 '14 #5

 P: 9 Try just one print statement and see what it says: print subtotal Sep 6 '14 #6

 P: 7 thankyou. I tried print subtotal got: SyntaxError: invalid syntax Sep 6 '14 #7

 P: 9 Are you running this from IDLE or do you have it saved as a script? Sep 6 '14 #8

 P: 7 Im trying them in both IDLE and Ninja Sep 6 '14 #9

 P: 9 Wait....you're probably using a python 3.x version so you have to put parenthesis around things you want to print: print (subtotal) Sep 6 '14 #10

 P: 7 yep yep I am using python 3.x and yep yep I have tried both with parenthesis and without. I changed my code to this: shirts=12.99 amount=float(input("How many shirts would you like to purchase?")) subtotal= shirts * amount * 0.20 percentage= shirts * amount * 0.20 total= subtotal - percentage print (total) when I print (subtotal) I get the right answer when I print (percentage) I also get the right answer but now when I print (total) I get 0.0 no matter what number I input when I run it to test it. Sep 6 '14 #11

 P: 7 OHHHHHHHHHHHHHHH I FIXED IT!! YAY!! I see what I was doing wrong I had: subtotal= shirts * amount * 0.20 percentage= shirts * amount * 0.20 when actually suppose to be: subtotal= shirts * amount percentage= shirts * amount * 0.20 oh gee I feel soooo sillyyyyy. Thank you so much for taking time to help me. I highly appreciate it. Sep 6 '14 #12