photosynth_list_downloader.py

import os
import subprocess
import urllib
import sys

# you need to pass the _list.txt file as 1st argument.
# python download_list.py ps2_list.txt
f = open(sys.argv[1], 'r+')

for line in f:
	tmp = line.split(" ")
	guid = tmp[0]
	print "Processing: %s" % guid
	url = tmp[2].rstrip('\r\n') # remove end of line
	filename, file_extension = os.path.splitext(url)

	target_file = guid + file_extension
	tmp_file = guid + ".tmp"

	if os.path.isfile(tmp_file):
		# delete temporary file
		os.remove(tmp_file)

	if not os.path.isfile(target_file):
		# download url to temporary file
		urllib.urlretrieve (url, tmp_file)
		
		# rename temporary file to target filename
		os.rename(tmp_file, target_file)