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Guide to Implementing a dataset

Pre-Requisites

Please make a github account prior to implementing a dataset; you can follow instructions to install git here.

You will also need at least Python 3.6+. If you are installing python, we recommend downloading anaconda to curate a python environment with necessary packages. We strongly recommend Python 3.8+ for stability.

Optional Setup your GitHub account with SSH (instructions here.)

1. Setup a local version of the ThoughtSource repo

Fork the ThoughtSource repository to your local github account. To do this, click the link to the repository and click "fork" in the upper-right corner. You should get an option to fork to your account, provided you are signed into Github.

After you fork, clone the repository locally. You can do so as follows:

git clone git@github.com:<your_github_username>/ThoughtSource.git
cd ThoughtSource  # enter the directory

Next, you want to set your upstream location to enable you to push/pull (add or receive updates). You can do so as follows:

git remote add upstream git@github.com:OpenBioLink/ThoughtSource.git

You can optionally check that this was set properly by running the following command:

git remote -v

The output of this command should look as follows:

origin  git@github.com:<your_github_username>/ThoughtSource.git(fetch)
origin  git@github.com:<your_github_username>/ThoughtSource.git (push)
upstream    git@github.com:OpenBioLink/ThoughtSource.git (fetch)
upstream    git@github.com:OpenBioLink/ThoughtSource.git (push)

If you do NOT have an origin for whatever reason, then run:

git remote add origin git@github.com:<your_github_username>/ThoughtSource.git

The goal of upstream is to keep your repository up-to-date to any changes that are made officially to the datasets library. You can do this as follows by running the following commands:

git fetch upstream
git pull

Provided you have no merge conflicts, this will ensure the library stays up-to-date as you make changes. However, before you make changes, you should make a custom branch to implement your changes.

You can make a new branch as such:

git checkout -b <dataset_name>

Please do not make changes on the master branch!

Always make sure you're on the right branch with the following command:

git branch

The correct branch will have a asterisk * in front of it.

2. Create a development environment

You can make an environment in any way you choose to. We highlight two possible options:

2a) Create a conda environment

The following instructions will create an Anaconda thoughtsource environment.

  • Install anaconda for your appropriate operating system.
  • Run the following command while in the libs\cot folder (you can pick your python version):
conda env create -f conda.yml  # Creates a conda env
conda activate thoughsource  # Activate your conda environment

You can deactivate your environment at any time by either exiting your terminal or using conda deactivate.

2b) Create a venv environment

Python 3.3+ has venv automatically installed; official information is found here.

python3 -m venv <your_env_name_here>
source <your_env_name_here>/bin/activate  # activate environment
pip install -e libs/cot # Install the CoT library

Make sure your pip package points to your environment's source.

3. Implement your dataset

Make a new directory within the libs/cot/cot/datasets directory:

mkdir libs/cot/cot/datasets/<dataset_name>

Add an __init__.py file to this directory:

touch libs/cot/cot/datasets/<dataset_name>/__init__.py

Please use lowercase letters and underscores when choosing a <dataset_name>. To implement your dataset, there are three key methods that are important:

  • _info: Specifies the schema of the expected dataloader
  • _split_generators: Downloads and extracts data for each split (e.g. train/val/test) or associate local data with each split.
  • _generate_examples: Create examples from data that conform to each schema defined in _info.

To start, copy libs/cot/cot/utils/template.py to your libs/cot/cot/datasets/<dataset_name> directory with the name <dataset_name>.py. Within this file, fill out all the TODOs.

cp libs/cot/cot/utils/template.py libs/cot/cot/datasets/<dataset_name>/<dataset_name>.py

For the _info_ function, you will need to define features for your DatasetInfo object. For the thoughtsource config, the ThoughtSource schema is used.

You will use this schema in the _generate_examples return value.

Populate the information in the dataset according to this schema; some fields may be empty.

Running & Debugging:

You can run your data loader script during development by appending the following statement to your code (libs/cot/cot/utils/template.py already includes this):

if __name__ == "__main__":
    datasets.load_dataset(__file__)

If you want to use an interactive debugger during development, you will have to use breakpoint() instead of setting breakpoints directly in your IDE. Most IDEs will recognize the breakpoint() statement and pause there during debugging. If your prefered IDE doesn't support this, you can always run the script in your terminal and debug with pdb.

4. Format your code

From the libs/cot directory, run the Makefile via the following command:

make quality check_file=cot/datasets/<dataset_name>/<dataset_name>.py

This runs the black formatter, isort, and lints to ensure that the code is readable and looks nice. Flake8 linting errors may require manual changes.

5. Commit your changes

First, commit your changes to the branch to "add" the work:

git add libs/cot/cot/datasets/<dataset_name>/<dataset_name>.py
git commit -m "A message describing your commits"

Then, run the following commands to incorporate any new changes in the master branch of datasets as follows:

git fetch upstream
git rebase upstream/master

Run these commands in your custom branch.

Push these changes to your fork with the following command:

git push -u origin <dataset_name>

6. Make a pull request

Make a Pull Request to implement your changes on the main repository here. To do so, click "New Pull Request". Then, choose your branch from your fork to push into "base:master".

When opening a PR, please link the issue corresponding to your dataset using closing keywords in the PR's description, e.g. resolves #17.