如何将一个浮点数乘以十进制并获得一个浮点数

Question

I'm trying to do some math in python. Here's my code:

if(height.is_integer()):
    height = int(height)
meters = height * .3048
in_m = "%d meters" % meters
print "You are also also %s tall (let's hope it doesn't round)." % (in_m)

As you can see I'm trying to make height any user-defined amount and then multiply that by a decimal to get a floating point number defined as meters. The problem is that when I input a number like 6 for height or 5.25 it just rounds down to one meter. Can anyone help me?

Answer 1

in_m = "%d meters" % meters

it just rounds down to one meter.

Your conversion using %d , applied to any numeric value, prints only its integer part. To print a value as floating one, you should use %f , %e or %g ; for your need, %g seems to be the best default.