Scripts to enable Assistive Access programmatically on OS X El Capitan.

assistive-access-el-capitan.py

#!/usr/bin/python

# Grant Assistive Access to Terminal and “osascript”.
import sqlite3
conn = sqlite3.connect('/Library/Application Support/com.apple.TCC/TCC.db')

conn.cursor().execute("INSERT or REPLACE INTO access VALUES('kTCCServiceAccessibility','com.apple.Terminal',0,1,1,NULL,NULL)")
conn.cursor().execute("INSERT or REPLACE INTO access VALUES('kTCCServiceAccessibility','$(which osascript)',1,1,1,NULL,NULL)")

conn.commit()
conn.close()

assistive-access-el-capitan.sh

#!/bin/sh

# Grant Assistive Access to Terminal and “osascript”.
sudo sqlite3 <<EOF
.open '/Library/Application Support/com.apple.TCC/TCC.db'
insert or replace into access values('kTCCServiceAccessibility','com.apple.Terminal',0,1,1,NULL,NULL);
insert or replace into access values('kTCCServiceAccessibility','$(which osascript)',1,1,1,NULL,NULL);
.quit
EOF

Note the different INSERT commands.
Use 0 when passing a bundle ID (com.apple.Terminal)
and 1 when passing paths to programs (/usr/bin/osascript or $(which osascript)).

Looks like Sierra made this not possible

$ sh assistive-access-el-capitan.sh
Password:
Error: near line 2: attempt to write a readonly database
Error: near line 3: attempt to write a readonly database

Same problem. Did anyone figured a work around?

$ sh assistive-access-el-capitan.sh
Password:
Error: near line 2: attempt to write a readonly database
Error: near line 3: attempt to write a readonly database

Haven't found a workaround. Did find the reason behind it not working though http://applehelpwriter.com/2016/09/20/dropbox-hack-blocked-by-apple-in-sierra/

Would disabling SIP work?