beyonddream / calculator

A simple parser written in python for evaluating expressions and sub-expressions consisting of arithmetic operations (`plus`, `minus`, `multiplication` and `division` and `parenthesis`) involving `int`.

calculator

A simple parser written in python for evaluating expressions and sub-expressions consisting of arithmetic operations (plus, minus, multiplication and division and parenthesis) involving int.

Usage

$ python calculator.py
(3+4)*3/2
Evaluation of expression: (3+4)*3/2 is 10.5

Dependencies

• python 3.9+
• pip
• poetry
• hypothesis (to run property based test suite)
• conda/venv for virtual environment creation and maintenance

# assuming virtual environment is activated from here onwards
$ pip install poetry
$ poetry install

Test

# To run simple unit test.

$ pytest tests/unit.py

# To run hypothesis (property based testing) suite.

$ pytest tests/property.py --hypothesis-show-statistics