Limiting floats to two decimal points

Question

How can I round off b to 16.75

>>> b
16.749999999999999
>>> round(, 2)
16.749999999999999

I tried round function but it doesn't worked.

Answer 1

You can use round() :

>>> round(16.749999999999999, 2)

16.75

This works well for all Python versions 2.7 or above. Cheers. 

Answer 2

For limiting floats to two decimal points you can use the simplest approach which is to use the format() function.

An example is as follows:

a = 13.949999999999999 

format(a, '.2f') 

13.95

The above code will produce a float number as a string rounded to two decimal points.

You can use the following video tutorials to clear all your doubts:-