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visual-identity/plasma_cash/README.md

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Development Dependencies

A patched version of web3.py is used because otherwise it does not work with Ganache due to issue #674. In addition, in order to be able to monitor events, PR #827, which is not merged yet. Pyethereum dependencies broke recently so we need to manually install a slightly older version of rlp encoding. Flask is used for server purposes.

On OSX + Homebrew

source /usr/local/bin/virtualenvwrapper.sh

mkvirtualenv erc721plasma --python=/usr/bin/python3.6
pip install -r requirements.txt

Launch Plasma Chain

  1. Make sure the contracts are deployed at the correct addresses (npm run migrate:dev in server directory)
  2. Run FLASK_APP=./child_chain FLASK_ENV=development flask run --port=8546 in one terminal. This will start a Plasma Chain instance which listens at localhost:8546 and is also connected to the deployed contracts
  3. Run python demo.py

TODO Should probably bundle these into makefiles, i.e. make server should launch the plasma chain.

Testing

make test

Linting

make lint