sizeconverter.py

from PIL import Image
import pdb

BANNER_SIZE = (650,400)
THUMBNAIL_SIZE = (106,80)
TILE_SIZE = (82,61)
GIVEN_FILE = "tile123.png"


def resize_picture(saved_name, root_image, size):
	im = Image.open(root_image)
	x,y = im.size
	X,Y = size
	if x >= X and y >= Y:
		try:
			image_banner = open(saved_name, 'w')
		except IOError as e:
			print "I/O error({0}): {1}".format(e.errno, e.strerror)

		im_banner = im.resize(size)
		im_banner.save(image_banner)
		print "success"
	else:
		print "Upload a image with size more than that of {0}".format(size)

resize_picture("banner123.png", GIVEN_FILE, BANNER_SIZE)
resize_picture("thumbnail123.png", GIVEN_FILE, THUMBNAIL_SIZE)
resize_picture("tile123.png", GIVEN_FILE, TILE_SIZE)