Strategy Pattern Calculator

Python implementation of a command line calculator using the strategy design pattern

Description

This is a simple command-line calculator that can perform basic arithmetic operations. The calculator is implemented using the strategy design pattern. The calculator can perform the following operations:

• Addition
• Subtraction
• Multiplication
• Division

To be implemented:

• Setup tool to install the calculator as a package
• Exponentiation
• Square root
• Logarithm

Getting Started

Installing

• Clone the repository

git clone https://github.com/yrangana/Strategy_Pattern_Calculator.git

• Install the dependencies

make install

Executing program in python

• Run the calculator with prompts

python src/main.py

• Run the calculator with arguments

python src/main.py -n1 <first number> -n2 <second number> -op <operation>

• Run the tests

make test

Executing program in CLI

• Setup as a Command Line Tool

python -m pip install --editable .

• Run the calculator with prompts

spcalc

• Run the calculator with arguments

spcalc -n1 <first number> -n2 <second number> -op <operation>

Help

Usage: main.py [OPTIONS]

Options:
  -n1, --num1 FLOAT               First number
  -n2, --num2 FLOAT               Second number
  -op, --operation [add|subtract|multiply|divide]
                                  Operation to perform
  --help                          Show this message and exit.

Authors

Yasiru Rangana

Version History

• V1.0.0

  • Initial Release as a Command Line Tool

• V1.1.0

  • Minor Bugs were fixed

• V1.2.0

  • Minor Improvements

License

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