Streamlit Pianoroll

Streamlit component that allows you to play MIDI.

Installation instructions

pip install streamlit-pianoroll

Usage instructions

import streamlit as st

from pianoroll_streamlit import pianoroll

st.write("This is a pianoroll!")

pianoroll()

Development instructions

• Initialize and run the component template frontend:

$ cd pianoroll_streamlit/frontend
$ npm install    # Install npm dependencies
$ npm run start  # Start the Webpack dev server

• From a separate terminal, run the template's Streamlit app:

$ cd template
$ . venv/bin/activate  # activate the venv you created earlier
$ pip install -e . # install template as editable package
$ streamlit run streamlit_pianoroll/example.py  # run the example

• If all goes well, you should see something like this:

Code Style

This repository uses pre-commit hooks with forced python formatting (black, flake8, and isort):

pip install pre-commit
pre-commit install

Whenever you execute git commit the files altered / added within the commit will be checked and corrected. black and isort can modify files locally - if that happens you have to git add them again. You might also be prompted to introduce some fixes manually.

To run the hooks against all files without running git commit:

pre-commit run --all-files

Publishing

Tutorial

# Prepare JS
cd streamlit_pianoroll/frontend
npm run build
cd ../..

# Releasey PYPI
echo "Update version in setup.py, pls"
python setup.py sdist bdist_wheel
python -m twine upload --repository pypi dist/*