I am interested in python, does python have any professional certification exams like the one java has, such as scjp? or how can i obtain the professional certification for python?
There are no official Python certifications as of yet.
Doing a "professional exam" won't make you a pro. You just have to write lots of code in python, to get experience. If you want to prove that you know how to use python then write a personal project in python and make it's source available. Of course it has to be good quality code, otherwise it will have the opposite effect :)
If you're interested in be contracted as a professional python programmer, you should be able to prove your skills in tests during job interview. I think there're getting much common these days, and companies rely more on testing personally the people than on an external professional certificate.
Start building a portfolio. One easy way to do this is get yourself a bitbucket account, fork some projects, make some contributions, and get them pulled back to the main branch. Then when you send a resume out, include a link to http://bitbucket.org/srisar, or whatever you get for your username. Or github. It doesn't matter which. But that will let prospective employers see what you've done. They can even check the change logs for your specific contributions.