# Buggy code
def provide_context_and_uptodate(self, tag, lang, node=None):
    """Provide data for the context and the uptodate list for the list of the given classifiation."""
    kw = {
        "tag_path": self.site.config["TAG_PATH"],
        "tag_pages_are_indexes": self.site.config["TAG_PAGES_ARE_INDEXES"],
        "taglist_minimum_post_count": self.site.config["TAGLIST_MINIMUM_POSTS"],
        "tzinfo": self.site.tzinfo,
        "tag_pages_descriptions": self.site.config["TAG_PAGES_DESCRIPTIONS"],
        "tag_pages_titles": self.site.config["TAG_PAGES_TITLES"],
    }
    context = {
        "title": self.site.config["TAG_PAGES_TITLES"]
        .get(lang, {})
        .get(tag, self.site.MESSAGES[lang]["Posts about %s"] % tag),
        "description": self.site.config["TAG_PAGES_DESCRIPTIONS"]
        .get(lang, {})
        .get(tag),
        "kind": "tag",
        "pagekind": ["tag_page", "index" if self.show_list_as_index else "list"],
        "tag": tag,
    }
    if self.show_list_as_index:
        context["rss_link"] = (
            """<link rel="alternate" type="application/rss+xml" type="application/rss+xml" title="RSS for tag {0} ({1})" href="{2}">""".format(
                tag, lang, self.site.link("tag_rss", tag, lang)
            )
        )
    kw.update(context)
    return context, kw


# Traceback (KeyError)
########################################
TaskError - taskid:render_galleries:output/galleries/index.html
PythonAction Error
Traceback (most recent call last):
File "/home/kwpolska/virtualenvs/nikola-py2/lib/python2.7/site-packages/doit/action.py", line 360, in execute
returned_value = self.py_callable(*self.args, **kwargs)
File "/home/kwpolska/git/nikola/nikola/plugins/task/galleries.py", line 466, in render_gallery_index
self.site.render_template(template_name, output_name, context)
File "/home/kwpolska/git/nikola/scripts/../nikola/nikola.py", line 607, in render_template
template_name, None, local_context)
File "/home/kwpolska/git/nikola/nikola/plugins/template/mako.py", line 88, in render_template
data = template.render_unicode(**context)
File "/home/kwpolska/virtualenvs/nikola-py2/lib/python2.7/site-packages/mako/template.py", line 452, in render_unicode
as_unicode=True)
File "/home/kwpolska/virtualenvs/nikola-py2/lib/python2.7/site-packages/mako/runtime.py", line 807, in _render
**_kwargs_for_callable(callable_, data))
File "/home/kwpolska/virtualenvs/nikola-py2/lib/python2.7/site-packages/mako/runtime.py", line 839, in _render_context
_exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
File "/home/kwpolska/virtualenvs/nikola-py2/lib/python2.7/site-packages/mako/runtime.py", line 865, in _exec_template
callable_(context, *args, **kwargs)
File "/home/kwpolska/Desktop/nikola-translated-path/cache/.mako.tmp/base.tmpl.py", line 91, in render_body
__M_writer(unicode(base.meta_translations()))
File "/home/kwpolska/Desktop/nikola-translated-path/cache/.mako.tmp/base_helper.tmpl.py", line 274, in render_meta_translations
__M_writer(unicode(_link(permalink, None, langname)))
File "/home/kwpolska/git/nikola/scripts/../nikola/nikola.py", line 765, in link
return self.path(*args, is_link=True)
File "/home/kwpolska/git/nikola/scripts/../nikola/nikola.py", line 729, in path
path = self.path_handlers[kind](name, lang)
KeyError: u'/galleries/galleries/index.html'

# Fixed code
def provide_context_and_uptodate(self, classification, lang, node=None):
    """Provide data for the context and the uptodate list for the list of the given classifiation."""
    kw = {
        "tag_path": self.site.config["TAG_PATH"],
        "tag_pages_are_indexes": self.site.config["TAG_PAGES_ARE_INDEXES"],
        "taglist_minimum_post_count": self.site.config["TAGLIST_MINIMUM_POSTS"],
        "tzinfo": self.site.tzinfo,
        "tag_pages_descriptions": self.site.config["TAG_PAGES_DESCRIPTIONS"],
        "tag_pages_titles": self.site.config["TAG_PAGES_TITLES"],
    }
    context = {
        "title": self.site.config["TAG_PAGES_TITLES"]
        .get(lang, {})
        .get(
            classification, self.site.MESSAGES[lang]["Posts about %s"] % classification
        ),
        "description": self.site.config["TAG_PAGES_DESCRIPTIONS"]
        .get(lang, {})
        .get(classification),
        "pagekind": ["tag_page", "index" if self.show_list_as_index else "list"],
        "tag": classification,
    }
    if self.show_list_as_index:
        context["rss_link"] = (
            """<link rel="alternate" type="application/rss+xml" type="application/rss+xml" title="RSS for tag {0} ({1})" href="{2}">""".format(
                classification, lang, self.site.link("tag_rss", classification, lang)
            )
        )
    kw.update(context)
    return context, kw