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modelx-cython: Cythonize modelx models

Important: modelx-cython is currently highly experimental and is released only for early adopters with advanced software engineering skills to explore its capability.

What is modelx-cython?

modelx-cython is a Python package for cythonizing exported modelx models.

modelx Ecosystem

Usage

Suppose model in the code below is a modelx Model. The code creates a pure-Python model of model as a Python package named "Model_nomx" in the current directory.

>>> model.export("Model_nomx")

You need a config file and a sample file to translate the model to a Cythonized model and compile it. Create and name them config.py and sample.py respectively, and place them in the directory where Model_nomx is located.

Upon installing modelx-cython, the mx2cy command becomes available as an executable command. In a Python-enabled command prompt or shell, change the current directory with cd to where Model_nomx is located, and run:

mx2cy Model_nomx

This will create a Python package named "Model_nomx_cy", next to the original "Model_nomx".

Command

usage: mx2cy [-h] [--sample SAMPLE] [--spec SPEC] [--setup SETUP] [--translate-only | --compile-only] model_path

Translate an exported modelx model into Cython and compile it.

positional arguments:
  model_path        Path to an exported modelx model to translate into Cython

options:
  -h, --help        show this help message and exit
  --sample SAMPLE   Path to a sample file to run for collecting type information (default: sample.py)
  --spec SPEC       Path to a spec file for setting parameters (default: spec.py)
  --setup SETUP     Path to a setup file for Cython (default: setup.py)
  --translate-only  Perform translation only (default: False)
  --compile-only    Perform compilation only (default: False)

See Also

How to Install

To install modelx-cython, run the following command from your command prompt:

pip install modelx-cython

If you're on Anaconda, instead above install it from conda-forge:

conda install -c conda-forge modelx-cython

Requirements

modelx-cython requires Python 3.7+.

  • modelx v0.23.0+
  • Cython v3.0.0+
  • setuptools
  • libcst
  • MonkeyType

License

Copyright 2023, Fumito Hamamura

modelx is free software; you can redistribute it and/or modify it under the terms of GNU Lesser General Public License v3 (LGPLv3).