how can i build my custom search engine for desktop pc with python

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http://stackoverflow.com – I am thinking of using python and Django for building the custom search engine. I have following ideas Python script will walk through all the directories break the file into following fields path filename Extension size I will store that in Django Model Then i can make the simple with search filters. I don't want to go in the contents. i just want to search by the filename only Python script i am thinking of using the os.walk is that ok , or i need to use more methods as well (HowTos)