Using .format to turn a float to an integer

Question

Very quick question.

x = 10
print("value is {:d}".format(x))

returns

value is 10

on the other hand:

x = 10.0
print("value is {:d}".format(x))

returns

ValueError: Unknown format code 'd' for object of type 'float'

Why doesnt this work?

Use this instead `print("value is {:f}".format(x))` https://pyformat.info/ — Sahil Gulati, Mar 01 '17 at 04:33

score 1 · Answer 1 · answered Mar 01 '17 at 00:04

1

You would use f not d for floats. And then specify the precision width as 0:

>>> print("value is {:.0f}".format(x))
value is 10

answered Mar 01 '17 at 00:04

Moses Koledoye

74,909
8
119
129

score 1 · Answer 2 · answered Mar 01 '17 at 00:07

1

From Python docs: 'd' Decimal Integer. Outputs the number in base 10. It will output the number in base 10, thats why you are getting the ValueError.

answered Mar 01 '17 at 00:07

andrew

4,171
2
22
26

Using .format to turn a float to an integer

2 Answers2