From a Tarball Using Pip
The easiest way is to simply
pip install LFortran. An example:
conda create -n lfortran python=3.7 conda activate lfortran pip install lfortran
This works on Linux, macOS and Windows. Pip will automatically download all build and run time dependencies, compile and install LFortran. The only prerequisite that you have to have is a working C compiler.
lfortran environment has the
lfort compiler available, you can
start the interactive prompt by executing
lfort, or see the command line
Optional: run tests:
pytest --pyargs lfortran
You can also install any tarball from https://lfortran.org/download/ directly, e.g.:
pip install https://lfortran.github.io/tarballs/release/lfortran-0.1.14.tar.gz
or equivalently by:
wget https://lfortran.github.io/tarballs/release/lfortran-0.1.14.tar.gz tar xzf lfortran-0.1.14.tar.gz cd lfortran-0.1.14 pip install .
This works on Linux, macOS and Windows:
conda create -n lfortran python=3.7 pytest llvmlite prompt_toolkit cmake make conda activate lfortran pip install antlr4-python3-runtime scikit-build
Install Java and then ANTLR, say, into
Clone the LFortran git repository:
git clone https://gitlab.com/lfortran/lfortran cd lfortran
Run an interactive prompt:
Note About Dependencies
End users (and distributions) are encouraged to use the tarball
which only depends on Python and a few Python packages (
antlr4-python3-runtime). The LFortran standard library
needs to be compiled and it needs a C compiler. Down the road (see our
roadmap), LFortran will be gradually rewritten in C++, so it will
also depend on a C++ compiler.
The tarball is generated automatically by our CI (continuous integration) and contains some autogenerated files: the parser, which is generated by ANTLR4 (requires Java) and the AST and ASR nodes, which is generated by an ASDL translator (requires Python). The Java requirement is only needed when using git directly, the tarball does not depend on Java in any way.
The same tarball is accessible from our Downloads page as well as from PyPI.