GCP send blob data datastore python

Send data to Google Cloud Platform(GCP) datastore /

from google.cloud import datastore
	from google.cloud.datastore.key import Key
	import argparse
	def sendDataToGCP(q_data, g_data, str_id, str_namespace):
	client = datastore.Client()
	key = client.key('graph', str_id, namespace=str_namespace)
	entity = datastore.Entity(key=key, exclude_from_indexes=['query','graph'])
	entity["title"] = str_id;
	entity["description"] = str_id;
	entity["query"] = q_data; #json.dumps(json.load(q_data))
	entity["graph"] = g_data;
	client.put(entity)
	# Then get by key for this entity
	result = client.get(key)
	print(result)
	if __name__ == '__main__':
	progpath = os.path.dirname(os.path.realpath(__file__))
	parser = argparse.ArgumentParser()
	parser.add_argument("-s","--store-namespace",metavar='file',type=str,
	help="Set Namespace default: %(default)s", default=None)
	parser.add_argument("-i","--store-id",metavar='file',type=int,
	help="Set id,as url default: %(default)s", default=1)
	parser.add_argument("-q","--query-file",metavar='file',type=str,
	help="input query file. if not given, then it assums STDIN as input",
	default=None)
	parser.add_argument("-g","--graph-file",metavar='file',type=str,
	help="input graph(.json) file. if not given, then it assums STDIN as input",
	default=None)
	args = parser.parse_args()
	args_dict = vars(args)
	try:
	if args_dict['store_id'] != None:
	str_id = args_dict['store_id']
	else:
	print (sys.stdin)
	except:
	print ("exception: invalid store id")
	try:
	if args_dict['store_namespace'] != None:
	str_namespace = args_dict['store_namespace']
	else:
	print (sys.stdin)
	except:
	print ("exception: invalid namespace")
	try:
	if args_dict['query_file'] != None:
	f = open(args_dict['query_file'], 'r')
	q_data = f.read()
	f.close()
	else:
	print (sys.stdin)
	except:
	print("An exception occurred on Reading Query file.")
	try:
	if args_dict['graph_file'] != None:
	f = open(args_dict['graph_file'], 'r')
	g_data = f.read()
	f.close()
	else:
	print (sys.stdin)
	except:
	print("An exception occurred on Reqading Graph file.")
	sendDataToGCP(q_data, g_data, str_id, str_namespace)