fluxons

Python library for easy graph creation.

Short description

Powered by python's magic __getattr__ and __call__, allows its users to express relations like:

g.fran.writes.fluxons

that will create on-the-fly the nodes fran and fluxons as members of g and the edge writes as member of fran pointing to fluxons.

The idea is avoiding ", ', [] as much as possible fusing referencing with creating.

Chain relations are possible:

g.fran.writes.fluxons.in.python

with the expected results.

Nodes and Edges can be called as functions to store metadata inside them:

g.fran(type='human').writes(lang='python').fluxons(type='code')

Useful for graphviz later use.

REMEMBER: nodes are unique; edges are not.

Caveats

• As edges are not unique (by design), they should not be referenced as an attribute of its origin node; this will create a new edge with the same name.
• Creating an edge on-the-fly without creating its destination is pointless as its reference will be lost.
• Node and Edges names must be valid python variable names.
• Node and Edges names cannot be the same as List members.
• Node and Edges names cannot be name, owner, md or dest.

Usage

Install uv.

Run tests

• uv run python -m unittest discover tests

How to combine it with graphviz

• uv sync --extra gv to install optional dependency graphviz.

See solar_system.py example:

• uv run python examples/solar_system.py
  • will create solar_system.svg
• If you have kitty, you can see it in the terminal:
  • kitten icat solar_system.svg

TODO

• handle clusters
• handle styling
• handle ranks
• show interactive example