A simple example Python package that demonstrates how to create and install packages using setup.py or pyproject.toml.

• Calculator: A simple calculator class with basic arithmetic operations
• Utilities: Helper functions for common tasks

python setup.py install

If there is an pyproject.toml, this file will be prioritized before setup.py.

pip install -e .

Or install in development mode:

pip install -e .[dev]

There will be an .egg-info folder under the current folder, or in your system path.

• It contains information about the installed package, so Python tools (like pip, setuptools, or dependency resolvers) know what’s installed and what version it is.
• It acts like a "package manifest" rather than actual code.

from my_package import Calculator, greet

# Use the calculator
calc = Calculator(10)
result = calc.add(5).multiply(2).get_result()
print(result)  # Output: 30

# Use utility functions
message = greet("Alice")
print(message)  # Output: Hello, Alice!

pip install -e .[dev]

black my_package/

This project is licensed under the MIT License - see the LICENSE file for details.