I'm the creator of unirest-python. I love requests and I think it's a great library, the Unirest libraries have been created to bring the same, easy, usage experience across different programming languages. They're a good fit for the 80% of simple consumption scenarios. We will improve all the Unirest libraries to make them a good fit for the remaining 20% :)

I don't like the idea of libraries competing with each other, I personally think they all get the niche of users who can decide which one to use accordingly to the problem they try to fix.