1.1 --- a/web/hgbook/converter.py	Mon Oct 19 20:01:15 2009 +0200
     1.2 +++ b/web/hgbook/converter.py	Tue Oct 20 00:58:33 2009 +0200
     1.3 @@ -17,11 +17,14 @@
     1.4  sel = CSSSelector('p, pre, h1, table.equation')
     1.5  body = CSSSelector('body')
     1.6  
     1.7 -filename = args[0]
     1.8 +try:
     1.9 +    filename = args[0]
    1.10 +except IndexError:
    1.11 +    raise IndexError("Usage: %s <path-to-html-file>" % __file__)
    1.12 +
    1.13  tree = etree.parse(filename, html.HTMLParser())
    1.14  root = tree.getroot()
    1.15  
    1.16 -
    1.17  body(root)[0].set('id', doc_id)
    1.18  
    1.19  for element in sel(root):