Ask HN: Why Python over Ruby?

But more seriously Python is a growth like Javascript. It has grown and adapted to every change it has been required because it has a very rapid iteration time and is great for wrappers to core C. It is clean and maintainable.

For this it has made huge inroads to system administration, game development, tool plugins, web development, command tasks and everything else. I have yet to have one instance where there weren't numerous libraries for every task. Even if you don't want to use a third party library there are many examples of how to do it.

Python is really at it's core many things. It is a functional language, it is an OO language and it can be procedural. It can wrap intense lower level libraries or port in a C extension for speed. The same code you wrote for your desktop api, can be used in a desktop app, a service, website, a web service, a tool plugin, at the command line or any way you need it.

It can float like a butterfly and sting like a bee.

Like Javascript, Python is based on a core few types, lists and dictionaries (objects). All the languages that seem to permeate like viruses have this basic computer science fundamental. It just is as simple and clean as you can get. Ruby also has this but it came a bit later.

And finally, it is named after the great Monty Python.

Ruby

- follows TIMTOWTDI

- Mutable strings etc.

- has a greater emphasis on code generation ("meta")

- VM's are much slower than Python (there is no Psycho etc.)

- emphasizes code clearity and readabiliy (human cycles are more important)

- Libraries are much less mature

- ...

The lists of differences could go on forever. A comparsion and "why" is difficult. I think they are too similar and the people are too polarized.

A language is a tool to solve a particular problem. In the case of Python you have higher momentum of the community and the switch from C/C++/Java to Python is often easier than to Ruby. (Wild statement of me with tests from a sample set of 2 test subjects ;) )

Probably the best characterization I can come up with is. Python is already on this "Enterprise" trip where companies use it a lot and so forth. Ruby has some interesting companies pushing it (Twitter etc.) but is not compeletely there yet, it still has more "hacker" and "monkeypatch" feeling. Oh wait, we call that "ninjapatching" in Ruby ;)

You might choose Python for exactly the same reason; e.g., I wouldn't use Ruby on teams with >2 developers, especially in Google. Python is more straightforward but at a (small) price of freedom.

Example: you can rapidly prototype in Ruby using blocks and extend basic classes (even integer) using monkeypatching. I was fascinated by this, yet I wouldn't monkeypatch when working with other people so that advantage goes out of the window.

What do you mean? Of course Ruby has a String class and plenty of methods on it, but I'm not sure if that's what you're talking about.

Ruby comes with an XML library standard, sure, but it's pretty bad. In my experience most people use competing libraries, of which there are several high quality options. You can get a walkable tree from the core library but you'd be better off with one of the superior third-party libraries like hpricot or nokogiri.

(edited badly written original)

I can READ other people's Python code with greater ease than Ruby, Java, C#, C++ or even C. At the end of the day, the quicker I can assimilate library code the quicker I can use it well and the quicker the module gets completed and fully tested. Of course, with Google and Eric Raymond raving about it, the confidence factor increased further.