How Do Computer Languages Like Python Get Profit?

The language itself doesn't make money. I might be wrong about this but I think computer languages (at least in the US) cannot be copyrighted. Therefore, the only way to make money with them is to sell a programming package -- the language, an editor, programming tools, etc.

These languages are called Open Source.
The benefit is that as the code is available to all, so people can develop the code without charging for the work.

Some people do it for love. If you get a good reputation then people will pay you to code for them. As the creator of the language you will have a good start on others.

Either you just charge for the software to use your language (compilers, runtime, etc.) and run the risk of nobody using it or give it all away and instead charge for books, documentation, technical support, seminars. Python and other open source languages originally only had any utility to their authors, even Java was designed as an in house language and runtime by Sun for use in set top boxes.

There are many ways to make money, like the previous contributor said, don't make it open-source. The wonderful thing about being open-source is that you're giving others a chance to try it and encouraging them to help you with your research. That's why PHP and Perl, etc. are so popular.

Another thing, you don't have to make money from the script, but rather, from sponsors and ads. Keep your language open source to gather users first. Once you feel you have a guaranteed users and traffic to your website, sell ad spaces and also look for supporters (ie. companies who can donate a server account or other resources).

Just make it so the compiler is not open source. That way if anyone wants to use your language they need to go through you.