In T183254#3848383, @Vriullop wrote:

I think this is intented for Wikipedias with static maps instead of dynamic maps. The zoom buttons appear expanding the map or in preview, not in read mode as the page is cached with a static map.

Anyway, the full screen button looks more wide in Wikipedia than in Wikivoyage.

Oh, that makes sense, I'm sorry I didn't think about that. If someone can confirm this, this task should be closed and maybe splitted into two "minor" tasks: one about the full screen button and another about the show preview page.
By the way, the "full screen" button could as well disappear for static maps in my opinion, we don't have a full screen button in images.

@Dalba If the methods or signatures have changed I'd say it's another issue. With the imports you have said, the editor works (haven't tested it extensively but I was able to edit and search). This is what the new imports should look like, with the conditional:

if sys.version_info > (3, 5):
	from idlelib import search as SearchDialog, replace as ReplaceDialog, configdialog as configDialog
	from idlelib.config import idleConf
	from idlelib.multicall import MultiCallCreator
else:
	from idlelib import SearchDialog, ReplaceDialog, configDialog
	from idlelib.configHandler import idleConf
	from idlelib.MultiCall import MultiCallCreator

I'd like to push this change but I don't know where (Gerrit?, Github?) and I don't know what steps you follow (testing, branches, pull requests, etc).