with open('schemeGroups.js', 'a') as f: x = open('colors.txt','r') prev_line = '' groupNumber = 0 for current_line in x: value = current_line.split("=>")[0].strip() varName = current_line.split("=>")[0].strip().replace("#", "") if prev_line.split("=>")[0].strip() != current_line.split("=>")[0].strip(): groupNumber += 1 f.write(']\n\n// color group: '+ str(groupNumber)+ ' | default color: ' + value + '\nexport var cg' + str(groupNumber) + '_' + varName + ' = [\n') f.write('"' + current_line.split("=>")[1].strip() + '",\n') prev_line = current_line x.close()