Traceback (most recent call last):

 "/usr/lib/python3.4/site-packages/qutebrowser/keyinput/modeman.py", line 127, in eventFilter
return modeman.eventFilter(obj, event)

 "/usr/lib/python3.4/site-packages/qutebrowser/keyinput/modeman.py", line 371, in eventFilter
return self._eventFilter_keypress(event)

 "/usr/lib/python3.4/site-packages/qutebrowser/keyinput/modeman.py", line 205, in _eventFilter_keypress
handled = handler(event) if handler is not None else False

 "/usr/lib/python3.4/site-packages/qutebrowser/keyinput/basekeyparser.py", line 297, in handle
handled = self._handle_single_key(e)

 "/usr/lib/python3.4/site-packages/qutebrowser/keyinput/modeparsers.py", line 63, in _handle_single_key
return super()._handle_single_key(e)

 "/usr/lib/python3.4/site-packages/qutebrowser/keyinput/basekeyparser.py", line 190, in _handle_single_key
self.execute(binding, self.Type.chain, count)

 "/usr/lib/python3.4/site-packages/qutebrowser/keyinput/keyparser.py", line 42, in execute
self._commandrunner.run(cmdstr, count)

 "/usr/lib/python3.4/site-packages/qutebrowser/commands/runners.py", line 290, in run
self._cmd.run(self._win_id, args)

 "/usr/lib/python3.4/site-packages/qutebrowser/commands/command.py", line 478, in run
self.handler(*posargs, **kwargs)

 "/usr/lib/python3.4/site-packages/qutebrowser/browser/commands.py", line 265, in tab_close
tabbed_browser.close_tab(tab)

 "/usr/lib/python3.4/site-packages/qutebrowser/widgets/tabbedbrowser.py", line 217, in close_tab
self._remove_tab(tab)

 "/usr/lib/python3.4/site-packages/qutebrowser/widgets/tabbedbrowser.py", line 255, in _remove_tab
tab.shutdown()

 "/usr/lib/python3.4/site-packages/qutebrowser/widgets/webview.py", line 292, in shutdown
if download_manager.has_downloads_with_nam(nam):

 "/usr/lib/python3.4/site-packages/qutebrowser/browser/downloads.py", line 713, in has_downloads_with_nam
if download.reply.manager() is nam:AttributeError: 'NoneType' object has no attribute 'manager'
Traceback (most recent call last):

 "/home/mark/anaconda/bin/conda", line 5, in <module>
sys.exit(main())

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/cli/main.py", line 179, in main
args.func(args, p)

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/cli/main_update.py", line 39, in execute
install.install(args, parser, 'update')

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/cli/install.py", line 256, in install
only_names=only_names, pinned=args.pinned, minimal_hint=args.alt_hint)

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/plan.py", line 265, in install_actions
config.track_features, minimal_hint=minimal_hint):

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 659, in solve
minimal_hint=minimal_hint)

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 444, in solve2
solutions = min_sat(clauses)

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/logic.py", line 506, in min_sat
for sol in islice(pycosat.itersolve(clauses), max_n):

 "/home/mark/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 331, in gen_clauses
assert len(clause) > 1, '%s %r' % (fn1, ms)AssertionError: argparse-1.2.1-py26_0.tar.bz2 MatchSpec(u'distribute')