pascal-triangle

Module for generating and printing Pascal's Triangle

Requires Python 3.9 (type hints)

Explicit implementation of Pascal's Triangle algorithm. Each row can be generated separately from all others. This vastly speeds up time if all you need is row 100 for example. This module is intended to be useful for mathematics or anytime a row(s) of Pascal's triangle might be useful.

Installation

Pascal-triangle can be installed directly with pip to use as a library and shell command by running pip install pascal-tri

OR clone the repo and run python -m pascal

Includes methods for

• generating a list of triangle rows
• pretty printing a triangle with correct spacing and alignment

The pascal module defines the following methods, access with

from pascal import *

    # To generate a explicit row 'n' of Pascal's triangle:
        calculate_row(n: int) -> PascalRow

    # To generate a list of 'n' rows:
        pascal(n: int) -> PascalTriangle

    # Pretty print to stdout a triangle with 'n' rows or (optionally) a supplied triangle:
        print_pascal(n: int, triangle: PascalTriangle = None) -> None

Can be run as a script as well.

python -m pascal [-h] [-l LINES]
  If LINES not specified, runs in interactive loop

Learning objectives

This project exists as an exercise in learning these techonlogies/concepts

• Python type hinting (VS code intellisense integration)
• Making distributable Python packages (PyPi)