import math
import socket


def get_public_ip():
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        sock.connect(("8.8.8.8", 80))
        return sock.getsockname()[0]
    except (socket.error, IndexError):
        pass
    finally:
        sock.close()

    return "127.0.0.1"


def readable_size(size_bytes):
    if size_bytes == 0:
        return "0 B"
    size_name = ("B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB")
    i = int(math.floor(math.log(size_bytes, 1024)))
    p = math.pow(1024, i)
    s = round(size_bytes / p, 2)
    return f"{s} {size_name[i]}"