float

builtins

class

float(number=0.0, /)
float(string, /)

Convert a string or number to a floating-point number, if possible.

© Python Software Foundation. PSF License Version 2 · Official docs ↗

Changed in 3.6, 3.7, 3.8

3.6: Grouping digits with underscores as in code literals is allowed.
3.7: The parameter is now positional-only.
3.8: Falls back to __index__() if __float__() is not defined.

Members of float

a

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

f

from_number: Convert real number to a floating-point number.
fromhex: Create a floating-point number from a hexadecimal string.

h

hex: Return a hexadecimal representation of a floating-point number.

i

is_integer: Return True if the float is an integer.