Galaxy graph

Edit and manage graph.

Getting started

Requirements

• Python >= 3.14

Installation

To install this package in the current python environment, use: python -m pip install galaxy_graph

Usage

from galaxy_graph import Graph, Node, Connection

graph = Graph()
house = Node("house")
graph.add(house)
house.connect(Connection(data="has room"), Node("bedroom"))
house.connect(Connection(data="has room"), Node("kitchen"))
house.connect(Connection(data="has room"), Node("bathroom"))

bedroom = graph.get_by_id("bedroom")
bedroom.connect(Connection(data="has area"), Node(data=9))
kitchen = graph.get_by_id("kitchen")
kitchen.connect(Connection(data="has area"), Node(data=7))
bathroom = graph.get_by_id("bathroom")
bathroom.connect(Connection(data="has area"), Node(data=6))

house.connect(
    Connection(data="has adress"),
    Node(data="1 Grande Rue, 0000, Saint Roustan"),
)

rooms = {
    node
    for node in house.get_neighbors_by_connection_data(
        predicate=lambda data: data == "has room",
    )
}
total_area = sum({
    sum({
        area.data
        for area in room.get_neighbors_by_connection_data(
            predicate=lambda data: data == "has area"
        )
    })
    for room in rooms
})
number = len(rooms)

print(f"this house has {number} rooms with a total area of {total_area} m^2")

Documentation

A complete documentation is available in the wiki.

Development

Requirements

This project use mise to manage development tools.

[!TIP] If mise is installed, and mise.toml is trusted with mise trust, all tools can be installed automatically with `mise install``

This project use the following tools:

• just: command runner
• hatch: project manager and package builder
• uv: package installer
• ruff: python linter and formatter
• ty: python type checker
• jujutsu: version control

[!NOTE] Tools used in the project consume and produce interoperable format to avoid vendor lock-in. This is the toolchain of the current maintener.

Usage

just can be used to speed up development for an identical toolchain.

Before making a commit, just fix will run all tests, format the code, lint and type check. If you don’t want to modify the code, just check will run all tests, lint and type check without any attempt to fix any issue.

Before a version change, just release will push all local commits to repository and publish the new package version.

All available commands can be listed with just -l.

License

This project is licensed under the GNU GPL v3+. See license file for more information.

Acknowledgement

Thanks to all the people that worked on the tools used, like python, neovim and mise.