Here the post record the questions and difficulties encountered during the project which are not able to categorized to the sub-project.
Specify event loop in function is removed
In high version tornado (>4.0) and new version asyncio, the argument
is all removed. Then all functions with this argument specified should all
be updated. Check the question here. This to-do change appears in all the sub-project when removing
the older version of tornado.
Well, how to update? By just remove the argument in function?