If the mouse is moved over a word (statement, instance, class, method, variable…) a tooltip is shown with the signature, name, datatype, docstring etc. of the word. This is determined via the method help of the package jedi (jedi is required for this).
The tooltip string is requested from jedi if the cursor remains at the same position for 400ms.
A “loading…” text is shown in the tooltip until jedi returns the help information.
This feature can be disabled via the itom property dialog (enabled per default).
This tooltip is similar to the optional tooltip of the completion combobox. This tooltip
has been improved due to the work done in this pull request.