code completion - How can I make the documentation pop-up on hover in PyCharm?

Question

I would like to know how to configure PyCharm so that when I hover over an object or method I get a (formatted) pop-up containing the doc-string. How can I do this?

Answer 1

Original feature request ticket: http://youtrack.jetbrains.com/issue/IDEA-66333

If PyCharm you are using is on 131.xxx branch or newer (can be found on "Help | About") then such option is available under Settings/Preferences | Editor | General | Show quick doc on mouse move.

For some earlier builds (when GUI controls where not yet available) it was possible to activate it by adding auto.show.quick.doc=true into IDE_INSTALL_FOLDER/bin/idea.properties file.

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Modern IDE versions have it at Settings/Preferences | Editor | Code Editing | Show quick documentation on mouse move and it is enabled by default:

(The screenshot is from PhpStorm but the option name & path is the same across IDEA-based IDEs)