It seems that you don't need an expensive PC (for the time being). I am grateful that the threshold is low that I can start programming with just one PC.

Install Anaconda

If you have a PC at hand, then install Python. However, it seems that Python is actually installed as standard on Mac. There is nothing that can be used without installing it, but it seems that the version is old, so I would like to install the latest version. (Version 2.7 (2 series) may be more appropriate depending on the process you want to do. Beginners think that it is okay to install version 3.7 (3 series) for the time being.)

Among the several ways to install Python, I used the classic Anaconda. In addition to Python itself, Anaconda also includes libraries that are often used in machine learning, so even beginners who are not familiar with it can start with just this.

Did you just say "Python greedy set"?

You can easily download Anaconda for free from the URL below. https://www.anaconda.com/distribution/

Follow the steps to download the Anaconda installer, Install Anaconda.

Operation check

When the installation is complete, it will pass through your PATH and you should be ready to use it. (* Depending on the version of Mac OS, you may need to add your own PATH!)

Start the terminal from Finder and check the operation.

After launching the terminal, type the following and press Enter (execute the command).

python　--version

"Python 3.7.4" is displayed.

next,

conda --version

"conda 4.7.11" is displayed. It's working fine.

More detailed Anaconda installation methods are shared by many friendly people online. Also, if you study how to use the terminal, you will not be in trouble later.

Run your first python file

I will make my debut in Python. You can use standard software, so enter the following code in a suitable text editor and save it on your desktop as "hello.py". (I use a text editor called "Atom") ".py" is the extension of the Python file.

hello.py

print("Hello")

Next, try running the Python file. Use the terminal to run. To run the file, you need to change to the directory where the file resides on your terminal. In this case, I saved it on the desktop, so I can run it by moving it to the desktop. If you saved the file in a folder, you need to move it to that folder. When you start the terminal, it starts from the state where you are in your home directory. Your desktop is usually directly under your home directory, so you should be able to go to your desktop by running the following command:

cd desktop

If you want to move to a folder called "Test" on your desktop

cd desktop/Test

You can move with. If you want to go back to the previous directory (parent directory),

cd ..

You can go back with. Don't forget the space after "cd". If you can move to the directory correctly, there is only execution. Run the following command:

Python hello.py

If "Hello" is displayed on the terminal, it is successful. You can run a Python file by typing "Python file name" and pressing Enter. I was able to build an environment to run Python on my PC safely.