helloworld

Hello World in Multiple Languages Extravaganza: Python

Summary

This directory contains two Python examples:

• helloworld.py: the simplest console example
• helloworld2.py: a slightly more structured example using a singleton metaclass and a decorator

It also includes test_helloworld.py, which is discoverable through standard unittest discovery.

Files

• helloworld.py
• helloworld2.py
• hellotest.py
• test_helloworld.py

hellotest.py is kept for backwards compatibility. test_helloworld.py is the canonical test entry point.

Run

From the repository root:

python python/helloworld.py
python python/helloworld2.py
python -m unittest discover -s python -p "test*.py" -v

Or from inside python/:

python helloworld.py
python helloworld2.py
python -m unittest discover -p "test*.py" -v

Tasks

• Basic Python hello world
• Advanced Python hello world
• Unit test discoverable with unittest
• Linked JSON-backed variant

Notes

• File names intentionally use helloworld*.py in this directory.
• The advanced example now avoids printing at import time so tests stay predictable.

This site is open source. Improve this page.