There are many different programming languages out there for a wide range of different technologies, two common ones are Ruby and Python which are both open-source, server-side scripting languages. Both of these languages are still commonly used to this day, but like all languages, they have their pros and cons.
Syntax
Ruby was developed to be easier and faster to use, with clean syntax that is simple to learn. This was done to increase the speed at which a developer can learn the code and then create new creative solutions, the downside to such simple syntax is that it can be notoriously hard to debug. Python on the other hand has a very elegant syntax, which is very easy to read, and coupled with its internal interactive shell that lets you test code before implementation, has made it easy to debug.
Readability
Readability isn't the only difference between the two languages, a common saying in programming is to never re-invent the wheel, so libraries are very important. There is a heavy user base behind Python which already has quite a large standard library, to begin with, meaning you get quite a lot of pre-made code right out of the box. On the other hand, Ruby's user base is slowly dwindling which means the community support is not as prolific as it used to be, and that up to date libraries are harder to come by.
Use cases
Another big difference with all languages is use cases. Not all languages are created equals, some languages only work for one thing such as Swift for IOS devices. Other languages are limited to certain categories of technology, Ruby is one of them. Ruby is very limited to web development and is very tricky to develop anything else using this language. Python on the other hand has a lot more use cases, its only issue being that it has weak mobile computing power making it almost impossible to create mobile applications using it.
Conclusion
In the end, it doesn't really matter if a language is faster/slower, easier to use, has a bigger library. What really matters is if you enjoy using it. You won't put in the time or effort to learn a language that you don't enjoy. If you really like games but for some reason have decided to learn website design, then you wont enjoy yourself. its better off to go and learn the thing you enjoy, and once you understand the concepts come back to another language.