jnc install

Installs an environment by resolving dependencies and populating the environment prefix. If the lock file is not up-to-date with the manifest, it will be updated first. By default, only the default environment is installed. Use --environment to install a specific environment, or --all to install every environment defined in the workspace. Running jnc install is not strictly required before other commands like jnc run or jnc shell — those commands automatically install the environment if needed. Use jnc install when you want to explicitly prepare an environment ahead of time. Alias: i

Usage

jnc install [OPTIONS]

Options

Option	Description
`-e`, `--environment <ENV>`	The environment(s) to install. Can be specified multiple times. Defaults to `default`.
`-a`, `--all`	Install all environments. Conflicts with `--environment`.
`--frozen`	Use the lockfile as-is, do not update it even if the manifest has changed.
`--locked`	Require the lockfile to be up-to-date with the manifest, abort if not.
`--skip <PACKAGE>`	Skip installation of specific packages (soft exclusion — dependencies are still installed).
`--skip-with-deps <PACKAGE>`	Skip a package and its entire dependency subtree (hard exclusion).
`--only <PACKAGE>`	Install only these package(s) and their dependencies. Can be specified multiple times.

Global Options

Option	Description
`-m`, `--manifest-path <PATH>`	Path to `jnc.toml`, `pyproject.toml`, or the workspace directory.

Examples

Install the default environment

jnc install

Install a specific environment

jnc install --environment test

Install all environments

jnc install --all

Install using the lock file without updating

jnc install --frozen

Install while skipping a package

jnc install --skip large-package

Install only specific packages and their dependencies

jnc install --only python --only numpy

Overview

Commands

jnc install

jnc install

Usage

Options

Global Options

Examples

Install the default environment

Install a specific environment

Install all environments

Install using the lock file without updating

Install while skipping a package

Install only specific packages and their dependencies

​jnc install

​Usage

​Options

​Global Options

​Examples

​Install the default environment

​Install a specific environment

​Install all environments

​Install using the lock file without updating

​Install while skipping a package

​Install only specific packages and their dependencies

jnc install

Usage

Options

Global Options

Examples

Install the default environment

Install a specific environment

Install all environments

Install using the lock file without updating

Install while skipping a package

Install only specific packages and their dependencies