# Buggy code
def minimumTabSizeHint(self, index, ellipsis: bool = True) -> QSize:
    """Set the minimum tab size to indicator/icon/... text.

    Args:
        index: The index of the tab to get a size hint for.
        ellipsis: Whether to use ellipsis to calculate width
                 instead of the tab's text.
    Return:
        A QSize of the smallest tab size we can make.
    """
    icon = self.tabIcon(index)
    icon_padding = self.style().pixelMetric(PixelMetrics.icon_padding, None, self)
    if icon.isNull():
        icon_width = 0
    else:
        icon_width = (
            min(icon.actualSize(self.iconSize()).width(), self.iconSize().width())
            + icon_padding
        )
    return self._minimum_tab_size_hint_helper(self.tabText(index), icon_width, ellipsis)


# Traceback (ValueError)
16:39:44 DEBUG    init       app:_init_modules:468 Initializing websettings...
16:39:45 ERROR    misc       crashsignal:exception_hook:216 Uncaught exception
Traceback (most recent call last):
File "/bin/qutebrowser", line 11, in <module>
load_entry_point('qutebrowser==1.1.1', 'gui_scripts', 'qutebrowser')()
File "/usr/lib/python3.6/site-packages/qutebrowser/qutebrowser.py", line 188, in main
return app.run(args)
File "/usr/lib/python3.6/site-packages/qutebrowser/app.py", line 137, in run
init(args, crash_handler)
File "/usr/lib/python3.6/site-packages/qutebrowser/app.py", line 163, in init
_init_modules(args, crash_handler)
File "/usr/lib/python3.6/site-packages/qutebrowser/app.py", line 469, in _init_modules
websettings.init(args)
File "/usr/lib/python3.6/site-packages/qutebrowser/config/websettings.py", line 215, in init
webenginesettings.init(args)
File "/usr/lib/python3.6/site-packages/qutebrowser/browser/webengine/webenginesettings.py", line 297, in init
websettings.init_mappings(MAPPINGS)
File "/usr/lib/python3.6/site-packages/qutebrowser/config/websettings.py", line 198, in init_mappings
mapping.set(value)
File "/usr/lib/python3.6/site-packages/qutebrowser/config/websettings.py", line 72, in set
self._set(value, settings=settings)
File "/usr/lib/python3.6/site-packages/qutebrowser/browser/webengine/webenginesettings.py", line 154, in _set
filenames = [self._find_installed(code) for code in value]
File "/usr/lib/python3.6/site-packages/qutebrowser/browser/webengine/webenginesettings.py", line 154, in <listcomp>
filenames = [self._find_installed(code) for code in value]
File "/usr/lib/python3.6/site-packages/qutebrowser/browser/webengine/webenginesettings.py", line 143, in _find_installed
local_filename = spell.local_filename(code)
File "/usr/lib/python3.6/site-packages/qutebrowser/browser/webengine/spell.py", line 64, in local_filename
all_installed = local_files(code)
File "/usr/lib/python3.6/site-packages/qutebrowser/browser/webengine/spell.py", line 51, in local_files
for matching_dict in sorted(matching_dicts, key=version, reverse=True):
File "/usr/lib/python3.6/site-packages/qutebrowser/browser/webengine/spell.py", line 36, in version
.format(filename))
ValueError: the given dictionary file name is malformed: /usr/share/qt/qtwebengine_dictionaries/en-US.bdic

# Fixed code
def minimumTabSizeHint(self, index, ellipsis: bool = True) -> QSize:
    """Set the minimum tab size to indicator/icon/... text.

    Args:
        index: The index of the tab to get a size hint for.
        ellipsis: Whether to use ellipsis to calculate width
                  instead of the tab's text.
                  Forced to False for pinned tabs.
    Return:
        A QSize of the smallest tab size we can make.
    """
    icon = self.tabIcon(index)
    icon_padding = self.style().pixelMetric(PixelMetrics.icon_padding, None, self)
    if icon.isNull():
        icon_width = 0
    else:
        icon_width = (
            min(icon.actualSize(self.iconSize()).width(), self.iconSize().width())
            + icon_padding
        )

    pinned = self._tab_pinned(index)
    if not self.vertical and pinned and config.val.tabs.pinned.shrink:
        # Never consider ellipsis an option for horizontal pinned tabs
        ellipsis = False
    return self._minimum_tab_size_hint_helper(
        self.tabText(index), icon_width, ellipsis, pinned
    )