Here is how I setup a local instance of Trac (a python based issue tracking web application) on my Mac.
Prerequisite: MySQL 5.6 and Python 2.7 (Python3 will not work with Trac yet!)
Step1: Setup a Trac database and a user
sql> CREATE DATABASE trac DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
sql> CREATE USER 'dev'@'localhost' IDENTIFIED BY 'dev123';
sql> GRANT ALL ON trac.* TO 'dev'@'localhost';
Step2: Install MySQL adaptor for Python and Trac
bash> pip install Genshi trac mysqlclient
Step3: Setup a Track instance
bash> trac-admin /Users/zemian/dev/mytrac intent
bash> # Above will prompt you to enter a backend string. Use
bash> # this connection string:
bash> # mysql://dev:dev123@localhost:3306/trac
Step3: Create a Trac admin user
bash> htpasswd -c /Users/zemian/dev/mytrac/.htpasswd admin
Step4: Run Track
bash> tracd -p 8000 --basic-auth="mytrac,/Users/zemian/dev/mytrac/.htpasswd,mytrac" /Users/zemian/dev/metric