Q:

What could prevent the Mods menu from appearing?

I'm on Mac OSX. I can't get the mods menu to show in minecraft.
I tried to follow: 
http://www.instructables.com/id/Python-coding-for-Minecraft/
I've installed 
forge-1.9.4-12.17.0.2051-installer.jar
I do see a forge profile in the launcher (launcher version 1.6.70). I edited the profile to use version release 1.9.4. Minecraft starts just fine, but nowhere do I see a mods menu item. I can find "options->Resource Packs..." but nothing about mods. "/py" in the console results in "unknown command".
From the launcher, "open game dir" brings me to 
/Users/jeff/Library/Application Support/minecraft
which has mods/1.10, mods/1.9.4 and mcpipy/ with lots of python files.
I also retried the whole process with forge-1.11.2 and I get the same results.
Could anybody indicate me how to debug this further ? What are the steps to figure out why the mods menu is not showing ? 
Thanks !

A:

Editing the profile that Forge created for you to use 1.9.4 broke the profile — doing that tells the profile to run unmodded 1.9.4!
The profile Forge adds for you already has the Forge-modded 1.9.4 version selected and will work without needing you to change anything. Just leave it alone and launch it.

