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#!/usr/bin/env python
# blog image aspect ratio calculator
from __future__ import division # so that dividing two integers returns a float
import sys
import os
from PIL import Image # apt-get install python-imaging
def main():
if len(sys.argv) < 2:
sys.exit('%s: usage: %s IMAGE' % sys.argv[0])
if not os.path.exists(sys.argv[1]):
sys.exit('%s: file %s not found' % (sys.argv[0], sys.argv[1]))
img = Image.open(sys.argv[1])
img_width, img_height = img.size
if img_width > img_height:
new_width = "500"
new_height = (500 / img_width) * img_height
new_height = str(round(new_height, 0))[:-2]
else:
new_height = "500"
new_width = (500 / img_height) * img_width
new_width = str(round(new_width, 0))[:-2]
print "[[!img blog/img/" + os.path.basename(sys.argv[1]) + " size=" + new_width + "x" + new_height + "]]"
if __name__ == "__main__":
main()
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