Walk through dir, collect JPGs, copy to destination with timestamp as name, with duplicate detection.

photototo.py

import exifread
import os
import re
import shutil


in_dir = "path"
out_dir = "path"
clean = False


def do_the_walk(base_dir, out_dir):
    for root, dirs, files in os.walk(base_dir):
        for sub_dir in dirs:
            do_the_walk(sub_dir, out_dir)

        for the_file in files:
            if the_file.upper().endswith('.JPG'):
                f = open(root + "/" + the_file, 'rb')
                tags = exifread.process_file(f)
                if 'EXIF DateTimeOriginal' in tags:
                    tmp = str(tags['EXIF DateTimeOriginal'])
                    ts = re.sub(r'[^0-9]', '', tmp)
                    counter = 0
                    while True:
                        out_name = "%s_%s.JPG" % (ts, str(counter))
                        counter = counter + 1
                        if not os.path.isfile(out_dir + out_name):
                            break

                    print "%s - %s" % (the_file, out_name)
                    shutil.copyfile(root + "/" + the_file, out_dir + out_name)

def main():
    if clean:
        filelist = [f for f in os.listdir(out_dir)]
        for f in filelist:
            os.remove(out_dir + f)

    do_the_walk(in_dir, out_dir)

if __name__ == "__main__":
    main()