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SENG 499 - Company 2: Algorithm 1

This repository contains a package (coursescheduler) that schedules the courses required for a software engineering degree at University of Victoria. The problem is implemented as a constraint satisfaction problem and an optimized backtracking search algorithm is used to find a valid schedule. This package was created for the Capstone SENG499 class: Company 2 Course Scheduler Project. Authored by the Company2 Algorithm1 sub-team.

Prerequisites

This package requires Python 3.9 or higher. In this README, it is assumed that python and pip will use Python 3.9. To check your Python version, you can run the following command:

$ python --version  # Should output "Python 3.9.0" or higher

To check your pip version, you can run the following command:

$ pip --version  # Should output some version of pip and "python 3.9" or higher

Install from PyPi Using PIP

Install this package into your environment from PyPi using pip.

$ pip install coursescheduler

The most recent available version of the package is uploaded to the PyPi index automatically as part of our CI/CD pipeline. To ensure that you are working with the most recent release, upgrade this module before integrating.

$ python -m pip install --upgrade coursescheduler

Install from Local Archives

Clone this repo into your repository. Inside the algorithm 1 module directory, build and install the package as shown below. Note: you must replace 0.1.0 with the correct version.

$ python -m build
$ pip install coursescheduler-0.1.0.tar.gz

Usage

Once installed, the algorithm can be imported and called with generate_schedule, as shown below. generate_schedule expects two parameters and returns a single output, all of which are Python dictionaries. The API specification can be found here.

from coursescheduler import generate_schedule
schedule = generate_schedule(professors, schedule)

A third parameter, debug, can be included. If set to True, professors and/or schedule can be set to None and the algorithm will use mock data.

schedule = generate_schedule(None, None, True)  # Uses mock data for professors and schedule
schedule = generate_schedule(professors, None, True)  # Uses mock data for schedule
schedule = generate_schedule(None, schedule, True)  # Uses mock data for professors

There are also functions that will validate input data according to the spec:

from coursescheduler import validate_professor_structure, validate_professors_structure, validate_schedule_structure
validate_professor_structure(professor)    # One Professor dict
validate_professors_structure(professors)  # A list of Professor dicts
validate_schedule_structure(schedule)      # A Schedule dict

If the input is valid according to the spec, these functions will return True. If there is a spec violation, a SchemaError will be raised. A second parameter can be passed to all three validate functions called print_output, which is set to True by default. If print_output is True and the input is valid, a success message will be printed to the console.

Dev

To make and test changes to the project, navigate into the root level directory /path/to/algorithm1/. After editing the project files, in order for the changes to take effect you must reinstall the local package by the following cmd:

$ pip install . 

To run the tests, run the following command:

$ cd tests
$ python -m pytest

Python Linter

We follow the PEP8 style guide, and we use flake8 to lint our code.

To install flake8, run the following command:

$ pip install flake8

To run flake8, run the following command:

$ python -m flake8 [file or directory]

We recommend using the code formatter black:

$ pip install black

To run black:

$ python -m black [file or directory]

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