Hi Bex T., thanks for the great question. It's indeed simple.

Here's how to do it on Linux. I apologize; I don't use Windows often. But I believe the method could be similar.

Create a file and name it the way you need the API. For illustration, I've created one called hello. Note that it doesn't have any file type extension such as .py or .sh.

The following is how its content should look like.

#! /usr/bin/python
print("hello world")

Note the first line #! /usr/bin/python . This line will tell the OS which executor to use when running the script. If you are using a virtualenv, this should be the path of your environment Python.

Then make this file an executable one. The below terminal command will do the trick.

sudo chmod +x hello

That's it! Now you can call this script just by typing hello in the terminal.

./hello

You can also get rid of the ./ part if you move the file somewhere in a system path. You can test it with the below terminal command.

export PATH=$PATH:$PWD

Now you can type hello, and the terminal will say 'hello world.'

I hope this helps.