sql dump file.. load to mysql

Question

Ok first, please assume that this is the first time I will be writing a single alphabet of code in SQL.. so please please please... it would be very kind if you can explain me each step. :) I am using mac for this development. So in the desktop, I have a huge (1.5GB) dumpfile of a database. I have mysqlworkbench (yes I have never worked in that either :( ) And I have installed MySQLdb. So, basically what I want to do is use the data in the database from python. So I have python.. mysqldb to connect to db.. huge db and mysqlworkbench.. Now I assume, that this dumpfile is useless as its not in form of database.. so how do I "mount" this dump to a database..(mysqlworkbench) After that how do I query from python.. (like the port number.. username , password!! ? ) It would be of huge help if anyone can help me.. I have been stuck in this since morning.. :(