write list to csv without modules

Question

Now I got a list of 100 items:

[['A'], ['B'], ['C'], ['B'],...]  

I need to write the list into a csv file and my expected output is like:

As I am not allowed to use any modules, most methods from the internet are not applicable.

Currently my output is like:

the code written so far is

 with open('output.csv', 'w') as f:
        f.write('id,category\n')
        for i in range(len(list)):
            f.write(str(i+1) + ',' + str(list) + '\n')

How should I modify my code to reach my expected output?

Answer 1

You need to use the index of the list in the loop

Try this code

lst = [['A'], ['B'], ['C'], ['B'], ['E'], ['F'], ['Y']]  

with open('output.csv', 'w') as f:
    f.write('id,category\n')
    for i in range(len(lst)):
        f.write(str(i+1) + ',' + str(lst[i][0]) + '\n')

Output (output.csv)

id,category
1,A
2,B
3,C
4,B
5,E
6,F
7,Y