credmark.dto.FloatDTO

class FloatDTO(value, **_kwargs)

Bases: float

A DTO that can be used as an float output (or input) to a model. When used as a top-level DTO it is serialized as a dict with a value field {"value": 123.45}, otherwise it is serialized as a number.

It can be used in python code as a normal float.

Methods

as_integer_ratio	Return a pair of integers, whose ratio is exactly equal to the original float.
conjugate	Return self, the complex conjugate of any float.
dict
fromhex	Create a floating-point number from a hexadecimal string.
hex	Return a hexadecimal representation of a floating-point number.
is_integer	Return True if the float is an integer.
schema
validate

Attributes

imag	the imaginary part of a complex number
real	the real part of a complex number

Parameters

value (float) –

__add__(value, /)

Return self+value.

__mul__(value, /)

Return self*value.

as_integer_ratio()

Return a pair of integers, whose ratio is exactly equal to the original float.

The ratio is in lowest terms and has a positive denominator. Raise OverflowError on infinities and a ValueError on NaNs.

>>> (10.0).as_integer_ratio()
(10, 1)
>>> (0.0).as_integer_ratio()
(0, 1)
>>> (-.25).as_integer_ratio()
(-1, 4)

conjugate()

Return self, the complex conjugate of any float.

fromhex()

Create a floating-point number from a hexadecimal string.

>>> float.fromhex('0x1.ffffp10')
2047.984375
>>> float.fromhex('-0x1p-1074')
-5e-324

hex()

Return a hexadecimal representation of a floating-point number.

>>> (-0.1).hex()
'-0x1.999999999999ap-4'
>>> 3.14159.hex()
'0x1.921f9f01b866ep+1'

imag

the imaginary part of a complex number

is_integer()

Return True if the float is an integer.

real

the real part of a complex number