On 19/11/2013 9:56 AM, Ed Taylor wrote:
This will be very simple to most of you I guess but it's killing me!
print ("Please type in your age")
age = input ()
leave = 16
print ("You have" + leave - age + "years left at school")
I want to have an input where the users age is inserted and then subtracted
from the variable age which is set to 16 and the answer displayed as You have x
years left at school.
Help much appreciated.
Hey there,
When asking code questions, if you get a traceback it's often handy to
include it so we can see exactly what problem you've hit.
Luckily, it's pretty obvious here:
1. input() binds a string to 'age', whereas 'leave' is an integer; you
cannot subtract a string from an integer, you need to turn the string
into an integer first. Try:
age = int(input())
2. With this done, you still have a similar issue: 'leave - age'
produces an integer, and you cannot concatenate strings & integers. You
can use string formatting to take care of this:
print("You have {} years left at school".format(leave - age))
There's a lot more to formatting than this, make sure to check out the
docs for it:
http://docs.python.org/3.1/library/string.html#format-string-syntax
Hope this helps.
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