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Lean Game Maker full install guide

This guide assumes you use a Debian-based Linux (e.g. Ubuntu), although it may hopefully be somewhat relevant to more exotic operating systems. It will install this software in an isolated environment. Of course this means wasting some space, but it guarantees no unwanted side effects.

Python 3.7

You need a recent python, at least python 3.7, because we use the dataclass decorator. An easy way to arrange that is to use PyEnv.

git clone https://github.com/pyenv/pyenv.git ~/.pyenv

You need to make sure your shell will find pyenv, for instance typing:

echo 'export PATH="$HOME/.pyenv/bin:$PATH"' >> ~/.bashrc

You are now ready to download python 3.7. It will be installed in your home directory, but you still need some system-wide library support. A good way to make sure everything is there is to run:

sudo apt install -y make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev python-openssl

or the equivalent command for non-Debian distributions.

Then restart a shell in order to get your new PATH variable (or use source ~/.bashrc) and install the python version you need.

pyenv install 3.7.2

You should now have a working copy of python 3.7.2 hidden in $HOME/.pyenv/versions/3.7.2 (pyenv does not do anything outside of this .pyenv folder, so you can very easily get rid of it by deleting this folder, and unsetting the PATH variable addition).

We will now prepare for a virtual environment dedicated to lean_env. The most convenient way is to use a system-wide virtualenvwrapper, setting three shell environment variables to configure it:

sudo apt install virtualenv python3-pip
sudo -H pip install virtualenvwrapper
echo -e 'export WORKON_HOME=$HOME/.virtualenvs\nexport VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3\nsource /usr/local/bin/virtualenvwrapper.sh' >> ~/.bashrc

And then create a virtual environment for lean_env (after restarting you shell, or at least sourcing bashrc in order to get those variables set) typing in your home:

mkvirtualenv --python=$HOME/.pyenv/versions/3.7.2/bin/python lean_env

Install Lean-game-maker

Install nodejs and gettext, if it's not already installed. Clone the repository. Inside the virtual environment and in the root folder of the repository, type

cd src/interactive_interface
npm install .
NODE_OPTIONS=--openssl-legacy-provider ./node_modules/.bin/webpack --mode=production
cd ../..

pip install -e .