Install Trac on Ubuntu 14.04

gistfile1.txt

apt-get install python python-babel
sudo apt install -y trac libapache2-mod-wsgi

apt-get install python-pip
pip install --upgrade Babel
pip install --upgrade Trac

mkdir -p /var/local/trac
trac-admin /var/local/trac initenv
htpasswd -c /var/local/trac/.htpasswd adminusername
trac-admin /var/local/trac permission add adminusername TRAC_ADMIN
chown -R www-data: /var/local/trac
chmod -R 775 /var/local/trac 

sudo trac-admin /var/lib/trac/test deploy /var/www/html/trac
sudo chown -R www-data:www-data /var/www/html/trac

sudo gedit /etc/apache2/sites-available/trac.conf

######
WSGIScriptAlias /trac /var/www/html/trac/cgi-bin/trac.wsgi
<Directory /opt/trac>
    WSGIApplicationGroup %{GLOBAL}
    Order deny,allow
    Allow from all
</Directory>
######

sudo apt-get install libapache2-mod-python
a2enmod python
a2ensite trac.conf
service apache2 restart

Then trac is ready on localhost/trac

refer:
https://trac.edgewall.org/wiki/TracOnUbuntu (doesn't work)
http://www.hiroom2.com/2016/08/06/ubuntu-16-04-install-trac/ (doesn't work)
https://help.ubuntu.com/community/TracApacheModWsgi (seems work, nice tutorial)