Hello World 🌍

Python 🐍

To create standard developers program "Hello World 🌍!" with Python 🐍 follow this steps:

1. Create directory (where you want to store Python projects, for example PyExamples), to creat it, use: cd ~ && mkdir PyExamples;
2. Move to created directory, cd PyExamples/;
3. Run command python3.11 -m venv .venv - (it will create virtualenv inside .venv directory);

4. To active virtualenv, use:

   WindowsUnix (MacOS, Linux)

   .venv\Scripts\activate.bat
   

   source .venv/bin/activate
   

   Success

   Inside terminal appears (.venv) before your username, this means that your virtualenv activated successfully.

   For example: (.venv) user@User:~/PyExamples$

   Deactivation

   To deactivate virtualenv use:

   deactivate
   

5. Create hello_world.py inside directory;

6. Set content of a file to:

   Python 🐍🐍

   if __name__ == "__main__":
       print("Hello Python!")
   

   print("Hello Python!")
   

7. Run this code with this command: python -m hello_world. You'll see output inside terminal: Hello World!

Rust 🦀

1. Create directory (where you want to store Rust projects, for example RsExamples), to creat it, use: cd ~ && mkdir RsExamples;
2. Move to created directory, cd RsExamples/;
3. Initialize binary project with cargo new <binary_name>, for example cargo new hello_world
4. Mode to binary project cd <binary_name>/, for example cd hello_world/
5. Cargo creates src directory with main.rs file (src/main.rs).

6. Cargo by default create main.rs with "Hello, world!" program, but you can change it a little:

   Rust 🦀

   fn main() {
       println!("Hello Rust!");
   }
   

7. Run code with this command cargo run. You'll se output inside terminal: Hello World!