# Sphinx version: 1.2.3
# Python version: 2.7.9
# Docutils version: 0.12 release
# Jinja2 version: 2.7.3
# Loaded extensions:
#   sphinx.ext.graphviz from /usr/lib64/python2.7/site-packages/sphinx/ext/graphviz.pyc
#   github from /var/tmp/portage/dev-python/ipython-2.4.0/work/ipython-2.4.0-python2_7/docs/sphinxext/github.py
#   sphinx.ext.autodoc from /usr/lib64/python2.7/site-packages/sphinx/ext/autodoc.pyc
#   sphinx.ext.doctest from /usr/lib64/python2.7/site-packages/sphinx/ext/doctest.pyc
#   matplotlib.sphinxext.mathmpl from /usr/lib64/python2.7/site-packages/matplotlib/sphinxext/mathmpl.pyc
#   matplotlib.sphinxext.plot_directive from /usr/lib64/python2.7/site-packages/matplotlib/sphinxext/plot_directive.pyc
#   sphinx.ext.inheritance_diagram from /usr/lib64/python2.7/site-packages/sphinx/ext/inheritance_diagram.pyc
#   matplotlib.sphinxext.only_directives from /usr/lib64/python2.7/site-packages/matplotlib/sphinxext/only_directives.pyc
#   numpydoc from /usr/lib64/python2.7/site-packages/numpydoc/__init__.pyc
#   IPython.sphinxext.ipython_console_highlighting from /var/tmp/portage/dev-python/ipython-2.4.0/work/ipython-2.4.0-python2_7/build/lib/IPython/sphinxext/ipython_console_highlighting.py
#   sphinx.ext.autosummary from /usr/lib64/python2.7/site-packages/sphinx/ext/autosummary/__init__.pyc
#   IPython.sphinxext.ipython_directive from /var/tmp/portage/dev-python/ipython-2.4.0/work/ipython-2.4.0-python2_7/build/lib/IPython/sphinxext/ipython_directive.py
#   sphinx.ext.oldcmarkup from /usr/lib64/python2.7/site-packages/sphinx/ext/oldcmarkup.pyc
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/sphinx/cmdline.py", line 254, in main
    app.build(force_all, filenames)
  File "/usr/lib64/python2.7/site-packages/sphinx/application.py", line 220, in build
    self.builder.build_update()
  File "/usr/lib64/python2.7/site-packages/sphinx/builders/__init__.py", line 214, in build_update
    'out of date' % len(to_build))
  File "/usr/lib64/python2.7/site-packages/sphinx/builders/__init__.py", line 276, in build
    self.write(docnames, list(updated_docnames), method)
  File "/usr/lib64/python2.7/site-packages/sphinx/builders/__init__.py", line 320, in write
    self._write_serial(sorted(docnames), warnings)
  File "/usr/lib64/python2.7/site-packages/sphinx/builders/__init__.py", line 333, in _write_serial
    self.write_doc(docname, doctree)
  File "/usr/lib64/python2.7/site-packages/sphinx/builders/html.py", line 433, in write_doc
    self.docwriter.write(doctree, destination)
  File "/usr/lib64/python2.7/site-packages/docutils/writers/__init__.py", line 80, in write
    self.translate()
  File "/usr/lib64/python2.7/site-packages/sphinx/writers/html.py", line 51, in translate
    self.document.walkabout(visitor)
  File "/usr/lib64/python2.7/site-packages/docutils/nodes.py", line 174, in walkabout
    if child.walkabout(visitor):
  File "/usr/lib64/python2.7/site-packages/docutils/nodes.py", line 174, in walkabout
    if child.walkabout(visitor):
  File "/usr/lib64/python2.7/site-packages/docutils/nodes.py", line 166, in walkabout
    visitor.dispatch_visit(self)
  File "/usr/lib64/python2.7/site-packages/docutils/nodes.py", line 1882, in dispatch_visit
    return method(node)
  File "/usr/lib64/python2.7/site-packages/sphinx/writers/html.py", line 612, in visit_literal_block
    HTMLTranslator.visit_literal_block(self, node)
  File "/usr/lib64/python2.7/site-packages/sphinx/writers/html.py", line 274, in visit_literal_block
    **highlight_args)
  File "/usr/lib64/python2.7/site-packages/sphinx/highlighting.py", line 218, in highlight_block
    hlsource = highlight(source, lexer, formatter)
  File "/usr/lib64/python2.7/site-packages/pygments/__init__.py", line 87, in highlight
    return format(lex(code, lexer), formatter, outfile)
  File "/usr/lib64/python2.7/site-packages/pygments/__init__.py", line 66, in format
    formatter.format(tokens, realoutfile)
  File "/usr/lib64/python2.7/site-packages/pygments/formatter.py", line 95, in format
    return self.format_unencoded(tokensource, outfile)
  File "/usr/lib64/python2.7/site-packages/pygments/formatters/html.py", line 838, in format_unencoded
    for t, piece in source:
  File "/usr/lib64/python2.7/site-packages/pygments/formatters/html.py", line 684, in _wrap_div
    for tup in inner:
  File "/usr/lib64/python2.7/site-packages/pygments/formatters/html.py", line 697, in _wrap_pre
    for tup in inner:
  File "/usr/lib64/python2.7/site-packages/pygments/formatters/html.py", line 716, in _format_lines
    for ttype, value in tokensource:
  File "/usr/lib64/python2.7/site-packages/pygments/filter.py", line 20, in _apply
    for token in filter_.filter(lexer, stream):
  File "/usr/lib64/python2.7/site-packages/pygments/filters/__init__.py", line 194, in filter
    for ttype, value in stream:
  File "/usr/lib64/python2.7/site-packages/pygments/lexer.py", line 192, in streamer
    for i, t, v in self.get_tokens_unprocessed(text):
  File "/var/tmp/portage/dev-python/ipython-2.4.0/work/ipython-2.4.0-python2_7/build/lib/IPython/qt/console/pygments_highlighter.py", line 30, in get_tokens_unprocessed
    for item in action(self, m):
TypeError: 'NoneType' object is not callable