def ip_str_from4bytes(s: bytes) -> str:  # b'\xc0\xa8\xfa\xe5' => 192.168.250.229
    """ Convert bytestring to string representation of IPv4 address

    Args:
        s: source bytestring

    Returns:
        IPv4 address in traditional notation
    """
    return str(s[0]) + "." + str(s[1]) + "." + str(s[2]) + "." + str(s[3])