Crash: AttributeError: 'BlockBox' object has no attribute 'index'

[Smylers]

WeasyPrint crashes on this input: http://www.stripey.com/demo/weasyprint/float_dd_ul_crash.html

I've checked with version 0.17. The stack trace is below.

It works fine if the height of the spacer <div> is either reduced to 6.5in or increased to 6.8in.

Traceback (most recent call last):
File "/usr/local/bin/weasyprint", line 9, in
load_entry_point('WeasyPrint==0.17', 'console_scripts', 'weasyprint')()
File "/usr/local/lib/python2.7/dist-packages/weasyprint/main.py", line 141, in main
getattr(html, 'write_' + format_)(output, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/init.py", line 159, in write_pdf
return self.render(stylesheets).write_pdf(target, zoom)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/init.py", line 131, in render
return Document._render(self, stylesheets, enable_hinting)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/document.py", line 251, in _render
return cls([Page(p, enable_hinting) for p in page_boxes])
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/init.py", line 52, in layout_document
pages = list(make_all_pages(context, root_box))
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/pages.py", line 539, in make_all_pages
context, root_box, page_type, resume_at, content_empty)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/pages.py", line 504, in make_page
positioned_boxes, positioned_boxes, adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 59, in block_level_layout
absolute_boxes, fixed_boxes, adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 87, in block_box_layout
page_is_empty, absolute_boxes, fixed_boxes, adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 402, in block_container_layout
adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 59, in block_level_layout
absolute_boxes, fixed_boxes, adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 87, in block_box_layout
page_is_empty, absolute_boxes, fixed_boxes, adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 402, in block_container_layout
adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 59, in block_level_layout
absolute_boxes, fixed_boxes, adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 87, in block_box_layout
page_is_empty, absolute_boxes, fixed_boxes, adjoining_margins)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 445, in block_container_layout
new_children, absolute_boxes, fixed_boxes)
File "/usr/local/lib/python2.7/dist-packages/weasyprint/layout/blocks.py", line 653, in find_earlier_page_break
resume_at = (children[index].index, None)
AttributeError: 'BlockBox' object has no attribute 'index'

[SimonSapin]

Fixed, thanks!