Random generator (PyCrypto getrandbits wrapper). The result is a non-negative value.

	:param bits_count: random bits to generate
	:return: int

def random_bits(bits_count):
	""" Random generator (PyCrypto getrandbits wrapper). The result is a non-negative value.

	:param bits_count: random bits to generate
	:return: int
	"""
	bytes_count = int(math.ceil(bits_count / 8))
	random_value = int.from_bytes(os.urandom(bytes_count), byteorder=sys.byteorder)
	result_bits = bytes_count * 8

	if result_bits > bits_count:
		random_value = (random_value >> (result_bits - bits_count))

	return random_value