Don't bring a laptop and try to refrain from saying anything not related to the questions because it can and may be used against you.
it's a job interview, not a police interview ...
show interest in the company, understand completely what they do (the number of people I interview that haven't even downloaded my company's (free) app, which the successful candidate will be WORKING ON...), have some thoughtful and insightful questions prepared about their business (ideally ones which challenge their model and shown you've thought critically)
show you're a human being who they'd like to work with, not a robot who they pay to do a job and nothing more.
Companies can do what they want. if they just want people in seats to follow some acquisition strategy, then good for them. But anyone who is honestly trying to make a career of software development should learn the language, tools, idioms, and techniques.
Btw, I've been studying programming for 20 years but would not apply for a Python job because my skills are not current. I would take a minimum of six months before I got to a level where I would consider applying.
Also, draw pictures! Before you write code on the whiteboard, discuss your approach, and draw any appropriate data structures/ui/etc. Once you've got buy-in from the interviewer that the approach you outlined sounds reasonable, then begin to implement it. This will not only score you points from the interviewer for taking a methodical approach, but will also make it more likely that the code you do write is well thought out.
Try to make mention of the fact that you are loving every moment of the learning process that you started a few months ago. Generally, people who consider hiring novice programmers are looking to help grow that person into a lean, mean coding machine, so if you appeal to that fact and tell them you're in it to learn, they'll love it and you should have a higher chance of getting the job.
Otherwise if the company is looking for someone with the know-how from the get-go, your only chance would be to nail the technical aspects of the interview, so study your ass off!
I also like techinterviews.com and projecteuler.net
I bought myself a whiteboard just to practice the usual programming questions. Good luck!