From building a Python environment for inexperienced people to Hello world

Environment construction procedure for programming experience sessions. A basic environment for experiencing Python.

Premise

OS: Windows10

environment

Python

download

https://www.python.org/

image.png

image.png

Installation

Run the downloaded file to start the installation. image.png

Be sure to check the "Add Python 3.9 to PATH" section at the bottom. image.png

The installation will proceed like this. image.png

If this screen appears, the installation is successful. image.png

Check if it was installed

Enter cmd in the" Enter here to search "in the lower left corner of Windows. image.png

Select the displayed "Command Prompt". image.png

Type python --version at the command prompt and press Enter. If you see the following, you are successful.

Python 3.9.0

image.png

Atom (text editor)

download

https://atom.io/

image.png

Installation

Run the downloaded file to start the installation.

image.png

A picture like this will appear. It will take some time. image.png

If successful, this screen will be displayed. image.png

When you press the "Alt" key, a menu will appear, so select "Add Project Folder". image.png

Create a folder in any location and press "Select Folder". image.png

Did it look like this? image.png

Python Helloworld

Right-click on the folder icon and select "New File". image.png

After entering the name of the program file (source code), press the Enter key. image.png

Let's write a program. image.png

Program to write to file


print('hello!! world!!')

Copy the location (path) where the program files are located. image.png

Paste it in the form cd path at the command prompt and press Enter. Please leave a space between cd and path.

Let's run the program.

python hello.py

image.png

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