Thumbnails and filenames into Excel spreadsheet

thumbnails2excel.py

"""
Thumbnails & metadata to Excel

Writes images, filenames, and identifiers to an excel file.
JPEGs should be no more than 150 pixels on the long edge.
Input file is a CSV with columns for 'Filename' and 'Identifier'
where 'Filename' values match actual filenames.

Last edited 2/2/2018 by Jasmine Burns, jburns@cornell.edu"""

import xlsxwriter
import csv

inputfile = 'metadata.csv' #change based on metadata csv filename
outputfile = 'test.xlsx' #change to desired output filename
column2 = 'Identifier' #change based on second column label in inputfile CSV

workbook = xlsxwriter.Workbook(outputfile)
worksheet = workbook.add_worksheet()
worksheet.set_column('A:A',20)

with open (inputfile) as csvfile:
    reader = csv.DictReader(csvfile)
    wksht = 1
    for row in reader:
        worksheet.set_row(wksht,120)
        if row['Filename'] == '':
            worksheet.write('A{0}'.format(wksht),'no image')
        else:
            if UserWarning:
                print('{0} not found'.format(row['Filename']))
                worksheet.write('A{0}'.format(wksht),'no image')
            else:
                worksheet.insert_image('A{0}'.format(wksht),row['Filename'])
        worksheet.write('B{0}'.format(wksht),row[column2])
        worksheet.write('C{0}'.format(wksht),row['Filename'])
        wksht = wksht + 1
    workbook.close()