This does not work as-is with Python 2.4.6.
https://codereview.appspot.com/573160047/diff/581230043/scripts/build/output-distance.py File scripts/build/output-distance.py (right): https://codereview.appspot.com/573160047/diff/581230043/scripts/build/output-distance.py#newcode424 scripts/build/output-distance.py:424: class_attr2 = (' class="%s"' % class_attr2) if class_attr2 else '' This syntax is not available (yet) in Python 2.4, you have to spell it out :-( https://codereview.appspot.com/573160047/diff/581230043/scripts/build/output-distance.py#newcode759 scripts/build/output-distance.py:759: rel_top = os.path.relpath (os.path.curdir, os.path.dirname (dest_file)) os.path.relpath is only available since Python 2.6. Given that you want a relative path to the current directory, you can use something like the following (works on my setup): # Count the number of separators and construct a relative path to the # current directory. rel_top = '../' * os.path.dirname (dest_file).count (os.path.sep) + '..' https://codereview.appspot.com/573160047/