Zachary Ware added the comment:
This is due to changes in the default font settings for IDLE. You can boost
your font size and/or pick a different font, and your underscores will appear.
3.4 is no longer receiving bug fixes (or binary installers), so there's nothing
we can do here.
New submission from Monti Carlo:
Trying to type in underscore and it just made a space... Downloaded 3.5.2 and
it works fine.
--
components: IDLE
messages: 270205
nosy: Monti Carlo
priority: normal
severity: normal
status: open
title: Underscore not showing Mac El Capitan
versions:
