Quick step to initial Python project

Install Python3

Python3 can be installed in various ways such as

1. Official installer https://www.python.org/downloads/
2. Package manager like Homebrew for macOS, apt-get for Linux-based.

Create Python Virtual Environment

mkdir my-python-app
python3 -m venv my-python-app

Activate virtual environment

source my-python-app/bin/activate

At this point the Terminal prompt will be changed to something like:

(my-python-app) $

We can perform any python3 or pip3 command from here.

For example: install boto3 dependency

(my-python-app) $ pip3 install boto3

Hello Python World

Create new Python source file named main.py

(my-python-app) $ vim main.py

def main():
    print("Hello World")

if __name__ == "__main__":
    main()

Run

(my-python-app) $ python3 main.py

Deactivate virtual environment

(my-python-app) $ deactivate

Happy coding !