Installation

Requirements

  • Python 3.11 or higher

  • Java 8 or higher – optional, needed only by lang='java' and by the JMT wrapper

  • The line-cli binary – optional, needed only by lang='cpp'

Installing from PyPI

The easiest way to install LINE Solver is via pip:

pip install line-solver

You can also visit the PyPI package page: https://pypi.org/project/line-solver/

Dependencies

LINE Solver Python requires the following packages:

  • numpy

  • pandas

  • scipy

  • matplotlib

  • networkx

  • websockets

  • mcp (the Model Context Protocol server, line-mcp)

These will be automatically installed when you install LINE Solver.

To install these dependencies manually, you can use:

pip install numpy pandas scipy matplotlib networkx websockets mcp

Verifying Installation

To verify your installation, run:

python -c "import line_solver; print(line_solver.__version__)"

Optional Backends

The solvers are a native Python implementation and run with no JVM. The same model can also be solved by LINE’s Java or C++ engine, selected per solver with the lang keyword:

MVA(model, lang="java").avg_table()   # needs a Java runtime; jline.jar is fetched on first use
MVA(model, lang="cpp").avg_table()    # needs the line-cli binary

line-install reports whether a Java runtime is on the path. See Solver Backends: lang='java', lang='cpp' for what each backend requires, where its engine is looked for, and which solvers it serves.