Can someone please fix my code for a simple tip calculator? I am new to Python.
price_meal = raw_input("How much did your meal cost?")
tip = raw_input("How much do you want to tip, in decimal form?")
price_meal += price_meal * tip
print "Your total cost is %s." % (price_meal)
Also how can I round the price of the meal after adding the tip to two decimal places? Thanks.
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You need to convert your variables to numbers before you do math with them. In this case you should use float, as in float(price_meal) or float(tip). Note that you can put the float around the raw_input, to convert it as it is typed in.
I see from the raw_input that you are using Python 2.7 or lower. You should learn with Python 3. In just over a year support for 2.7 will stop.
Sorry missed the rounding question. You can round with the round function, as in round(price_meal, 2). However, I would use string formatting for this (%.2f instead of %s). But look into the format method of strings. It's newer, faster, and more powerful.
(Oct-23-2018, 01:32 AM)ichabod801 Wrote: [ -> ]Sorry missed the rounding question. You can round with the round function, as in round(price_meal, 2). However, I would use string formatting for this (%.2f instead of %s). But look into the format method of strings. It's newer, faster, and more powerful.
Thanks for answering. I was wondering, would %.2f work with the format method of strings? Or do I have to do it another way?
The format method would look like
'Your total cost is ${:.2f}.'.format(price_meal). You can see the full format method syntax
here.
You should use a version so this work.
Which mean 3.6 or preferably 3.7.
price_meal = float(input("How much did your meal cost? "))
tip = float(input("How much do you want to tip, in decimal form? "))
price_meal += price_meal + tip
print(f'Your total cost is {price_meal:.2f}.')f-string is the newest way.
Install for Windows
Python 3.6/3.7 and pip installation under Windows,
for Linux so comes newer distros like Ubuntu 18.10 and Mint 19 with Python 3.6.5 as default install.