Python 3.2.3 programming…Almost had it working [closed]

Answer 1

I think you may want to use strings in those input statements:

x = float(input("What is/was the cost of the meal?"))

In addition, it may be a good idea to use {0} in your format strings (rather than {}), at least if you want to keep compatible with pre-2.7 Python (although in that case, I'd probably be using raw_input as well). Even after 2.7, I still prefer the positional specifiers since it makes it clearer for me.

This code works fine for me:

x = float(input("What is/was the cost of the meal?"))
y = float(input("What is/was the sales tax?"))
z = float(input("What percentage tip would you like to leave?"))

print ("Original Food Charge: ${0}".format(x))
print ("Sales Tax: ${0}".format(y*x))
print ("Tip: ${0}".format(x*z))
print ("Total Charge For Food: ${0}".format(x+(y*x)+(z*x)))

such as with:

What is/was the cost of the meal?50
What is/was the sales tax?.05
What percentage tip would you like to leave?.1
Original Food Charge: $50.0
Sales Tax: $2.5
Tip: $5.0
Total Charge For Food: $57.5

Though you may want to make it clear that the "percentages" should be in fractional format, lest entering 20 as your tip will make the waiter/waitress very happy.

Or, you can divide y and z by 100 to turn them from percentages to fractions.

Answer 2

input(What is/was the cost of the meal?)

Is bad. input() wants a string as an argument.

input('What is/was the cost of the meal?')

This is going to happen on all three of those lines. python should tell you that these symbols are not defined.

Answer 3

You need to put quotes around your strings, e.g., x = float(input("What is/was the cost of the meal?")) You also need to read the Python tutorial to learn the basics of Python.