How to convert a list of tuples into different csv files

Question

I have a list of tuples like this:

List=[ ('1',['45','55','56','57']) , ('2',['200','202','202']) , ('3',['500','501','502'])]

As can be seen, three tuples of size 2.

I want to convert this list into three different csv files.

The output should be three different csv file with the names of "1.csv","2.csv","3.csv"

Answer 1

While the files you want are valid CSV files, they're so trivial there's no need to use the csv module to create them (or read them).

data = [
    ('1', ['45', '55', '56', '57']),
    ('2', ['200', '202', '202']),
    ('3', ['500', '501', '502']),
    ]

for dataset_name, dataset in data:
    with open('{}.csv'.format(dataset_name), 'w') as outfile:
        for item in dataset:
            outfile.write('{}\n'.format(item))

This assumes each item in the lists should be on their own line.

Answer 2

If you want the data in one row:

List=[ ('1',['45','55','56','57']) , ('2',['200','202','202']) , ('3',['500','501','502'])]

for filename, data in List:
    with open('{}.csv'.format(filename), 'w') as f_output:
        f_output.write(','.join(data))

This would give you:

1.csv

45,55,56,57

2.csv

200,202,202

3.csv

500,501,502