random_sequence_gen.py

import random

random.seed(1000)

keys = 'KUL_EAT'
old_list =['KUL_EAT_0','KUL_EAT_1','KUL_EAT_2','KUL_EAT_3','KUL_EAT_4','KUL_EAT_5','KUL_EAT_6','KUL_EAT_7','KUL_EAT_8','KUL_EAT_9','KUL_EAT_10','KUL_EAT_11','KUL_EAT_12','KUL_EAT_13','KUL_EAT_14','KUL_EAT_15', 'KUL_EAT_43']
pool = random.sample(range(50), 40)

def randomGenerator(keys,pool,old_list):
	'''
	keys : sequence start
	pool : global sequence list unused
	old_list : gloabl sequence list used
	'''
	pool = [i for i in pool if not keys+'_'+str(i) in old_list]
	print(pool)
	random_no = random.choice(pool)
	pool.remove(random_no)
	value = keys+'_'+str(random_no)
	old_list.append(value)
	return value

for j in range(10):
	for i in randomGenerator(keys,pool,old_list):
		print i

print(old_list)