Is it possible to save and access and search an array or list containing elements with different length in python?

Question

Is it possible to save and access array or list containing elements with different length? For instance, I want to save data=[s,r,a,se] r,a are scalar but s and se are an arrays with 4 elements.(in python language)

For instance in one time:(s,r,a,se) are different in different times

 s=[1,3,4,6] r=5 a=7 se=[11,12,13,14] 
 data=[s,r,a,se]=[[1,3,4,6],5,7,[11,12,13,14]]

How I can define the array containing them to be able to call them similar to the following code:

s=[data[0] for data in minibatch]
r=[data[1] for data in minibatch]
a=[data[2] for data in minibatch]
se=[data[3] for data in minibatch]

Also, how I can extract (Find) that is there a special[stest,rtest,atest,setest] in data (stest,setest are with 4 elements)

For instance: I want to see can I find [[1,2,3,4],5,6,[7,8,9,10]] in data which is something similar to: [ [[1,2,3,4],5,6,[7,8,9,10]] ,[[...,...,...,...],...,..., [...,...,...,...]], [[18,20,31,42],53,666,[27,48,91,120]]]

If I did not find I append to it otherwise nothing is happened!

Answer 1

You can add them in a new list:

 new_list = [s, r, a, se]

But you'll have to be careful managing this list

Answer 2

# This is a great opportunity to explore dictionaries

# lets take the examples you have given in variales
s=[1,3,4,6] 
r=5 
a=7 
se=[11,12,13,14]

# make a dictionary out of them, with keys which are 
# the same as the variable name
my_dict = {'s':s,
           'r':r,
           'a':a,
           'se':se}

# lets see what that looks like
print(my_dict)
print()

# to retrieve 2nd (=ix=1) element of s
# the format to do this is simple
# ditionary_variable_name['the string which is the key'][index_of_the_list]
s2 = my_dict['s'][1]
print(s2)
print()

# to retrieve all of se
se_retrieved = my_dict['se']
print(se_retrieved)

# you can further experiment with this

output of sample:

{'s': [1, 3, 4, 6], 'r': 5, 'a': 7, 'se': [11, 12, 13, 14]}

3

[11, 12, 13, 14]

In order to write to this, you need to do something like this:

my_dict['se'] = [15, 16, 17, 18]

or

my_dict['se'][2] = 19