conda-tasks#

Project-scoped task runner for conda, with pixi task compatibility.

Define tasks, wire up dependencies between them, and run everything through conda task. conda-tasks reads conda.toml, pixi.toml, pyproject.toml, or .condarc and runs commands in your existing conda environments — no new package manager, no extra solver, just tasks on top of the tools you already use.

Install#

conda

conda install -c conda-forge conda-tasks

pixi

pixi global install conda-tasks

Define tasks#

Create a conda.toml in your project root:

[tasks]
build = "python -m build"
test = { cmd = "pytest tests/ -v", depends-on = ["build"] }
lint = "ruff check ."

[tasks.check]
depends-on = ["test", "lint"]

Then run your tasks:

conda task run check    # resolves dependencies, runs build → lint → test
conda task run test     # builds first, then tests
conda task list         # shows all available tasks

Or use the ct shortcut for quicker typing:

ct run check
ct list

Tasks are executed in your current conda environment by default, or target any environment with -n myenv. Dependencies are resolved with topological ordering so everything runs in the right order.

Why conda-tasks?#

pixi introduced an excellent task runner model, but it brings its own environment management. conda-tasks reuses that same task format while delegating execution to conda’s existing infrastructure.

This means:

Tasks read from conda.toml, pixi.toml, pyproject.toml, or .condarc — one definition, multiple tools
Task dependencies with topological ordering (depends-on)
Jinja2 templates in commands ({{ conda.platform }}, conditionals)
Task arguments with defaults, input/output caching, and per-platform overrides
Ships as a conda plugin (conda task) and a standalone ct CLI