brightway25 1.1.0

A wrapper library for documentation and easy installation of Brightway 2.5

Brightway2.5

Brightway 2.5 is the next generation of the Brightway2 framework for life cycle assessment. It provides new capabilities for cloud computing and model interaction, with the use of a new processed data library and a separation between the calculation library and a library for matrix construction and manipulation.

Note that this library does not import anything, so running from brightway25 import * won't do anything useful. Instead, import each constituent library separately. A good default is:

import bw2analyzer as ba
import bw2data as bd
import bw2calc as bc
import bw2io as bi
import matrix_utils as mu
import bw_processing as bp

Installing

The package is currently hosted in the cmutel channel of anaconda.org. This might change in the future for the conda-forge channel

You can install brightway25 with:

conda create -n bw25 -c conda-forge -c defaults -c cmutel brightway25

Upgrading

Brightway 2.5 can be use in parallel with Brightway 2, but each project must be either version 2 or 2.5. Brightway 2.5 projects have a different processed data format, and no longer use the mapping object.

To upgrade an existing project to version 2.5, use the function bw2data.projects.migrate_project_25().

To maintain a clean separation between these two sets of projects, you can use some type of naming convention, or use an environment variable for a new data directory.

Official site:

• https://brightway.dev

Online documentation:

• https://25.docs.brightway.dev/

Development blog:

• http://chris.mutel.org