python - Can't get raw_input to return a number -

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print "how old you?", age = raw_input() print "how tall in inches?", height = raw_input() print "how weigh in pounds", weight = raw_input()  print "so, %r years old, %r inches tall, , %d kilograms." % ( age, height, weight / 2.2)

so new code , code. when use terminal compile it, this:

how old you? 1 how tall in inches? 1 how weigh in pounds 1 traceback (most recent call last):   file "ex11.py", line 9, in <module>    age, height, weight / 2.2)  typeerror: unsupported operand type(s) /: 'str' , 'float'

can please explain me did wrong?

raw_input returns string object. need explicitly convert number object if plan use such (perform mathematical operations on it):

weight = int(raw_input())  #or  weight = float(raw_input())

use int if number integer. otherwise, use float if input can have decimal part such 10.1.


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