float_bin.py

import struct

def float32_bin(x):
    x, = struct.unpack("=I", struct.pack("=f", x))
    sign, exponent, mantissa = x >> 31, x >> 23 & 0xff, x & 0x7fffff
    if exponent != 255:
        return f"{['', '-'][sign]}0b{int(exponent != 0)}.{mantissa:023b}p{max(exponent, 1) - 127}"
    elif mantissa:
        return "nan"
    else:
        return f"{['', '-'][sign]}inf"

def float64_bin(x):
    x, = struct.unpack("=Q", struct.pack("=d", x))
    sign, exponent, mantissa = x >> 63, x >> 52 & 0x7ff, x & 0xfffffffffffff
    if exponent != 2047:
        return f"{['', '-'][sign]}0b{int(exponent != 0)}.{mantissa:052b}p{max(exponent, 1) - 1023}"
    elif mantissa:
        return "nan"
    else:
        return f"{['', '-'][sign]}inf"