script.py

from itertools import repeat
import csv


with open('sheet13.tsv', 'rb') as tsvin, open('new.csv', 'wb') as csvout:
    tsvin = csv.reader(tsvin, delimiter='\t')
    csvout = csv.writer(csvout)

    img_list = []
    for row in tsvin:
        img_list.append({row[0]:row[1].split('.')[0]},)
    print(img_list)