A simple tutorial to use tree-sitter to parse code into ASTs.

  • To understand what is tree-sitter, see https://github.com/tree-sitter/tree-sitter.
  • Tree-sitter is written in C. In order to use it in Python, it must have a Python binding interface to interact with the C code, see https://github.com/tree-sitter/py-tree-sitter.
  • However, the py-tree-sitter requires some complicated installation steps to make it work. This tutorial shows an easy way to make tree-sitter works with little effort. Go to to command line, follow these steps:
  1. pip3 install tree_sitter
  2. git clone https://github.com/bdqnghi/tree-sitter-parsers
  3. cd tree-sitter-parsers
  4. Execute these commands:

rm -rf dist/*
python3 setup.py sdist bdist_wheel
pip uninstall tree_sitter_parsers -y
pip install dist/tree_sitter_parsers-*-py3-none-any.whl
rm -rf ~/.tree-sitter
python3 -c "import tree_sitter_parsers"
  1. Check if the tree-sitters pre-installed libraries have been downloaded to your path in ~/.tree-sitter/bin
  2. Now you are ready to use tree-sitter, execute python3 test_parsing.py to see if it works, then you can explore the code by yourself.


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