fix: flake8 issues.
fix: flake8 issues.

hlmnrmr/liveblog,superdesk/liveblog,liveblog/liveblog,hlmnrmr/liveblog,hlmnrmr/liveblog,superdesk/liveblog,superdesk/liveblog,hlmnrmr/liveblog,liveblog/liveblog,liveblog/liveblog,superdesk/liveblog,liveblog/liveblog,liveblog/liveblog