Hi all,
I updated my site to Mezzanine 4.1.0/Django 1.9 yesterday and mostly it
went fairly smoothly.
This morning, however, I was getting errors from the blog app, specifically:
~~~~~
Internal Server Error: /blog/
Traceback (most recent call last):
File
"/home/danny/.virtualenvs/ausdwcon-navi/local/lib/python2.7/site-packages/django/core/handlers/base.py",
line 140, in get_response
response = middleware_method(request, callback, callback_args,
callback_kwargs)
File
"/home/danny/.virtualenvs/ausdwcon-navi/local/lib/python2.7/site-packages/mezzanine/pages/middleware.py",
line 95, in process_view
return view_func(request, *view_args, **view_kwargs)
File
"/home/danny/.virtualenvs/ausdwcon-navi/local/lib/python2.7/site-packages/mezzanine/blog/views.py",
line 58, in blog_post_list
settings.MAX_PAGING_LINKS)
File
"/home/danny/.virtualenvs/ausdwcon-navi/local/lib/python2.7/site-packages/mezzanine/utils/views.py",
line 158, in paginate
page_range = page_range[start:start + max_paging_links]
TypeError: sequence index must be integer, not 'slice'
~~~~~~~
I've determined this is happening because I have more than 50 blog posts
in the database, and we display 5 per page with max_paging_links set to 10.
When there's 50 or fewer blog posts to display, the error doesn't occur
- this is because the code doesn't enter the "if len(page_range) >
max_paging_links:" part of the paginate() function. (You can probably
check this by changing BLOG_POSTS_PER_PAGE or MAX_PAGING_LINKS in the
admin settings/miscellaneous - both are editable)
In any case, I did some tracking down - page_range should be a Django
Paginator Page object, which can take a slice as its index parameter
(See e.g. https://code.djangoproject.com/ticket/23140,
https://code.djangoproject.com/ticket/23190,
https://code.djangoproject.com/ticket/23088)
However, it appears that when I'm getting this exception, the page_range
object is of type xrange() - which can't take a slice.
So is there a problem somewhere in mezzanine/utils/views.py that should
be fixed? Or have I made a mistake myself somewhere else?
I'm using Python 2.7.6, so if it's a Python 2 vs 3 thing, we should
probably make sure the code works on both.
My workaround for now will be to change MAX_PAGING_LINKS in my site
settings to something larger.
Thanks for any help,
Seeya. Danny.
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