Cheat Sheet

This section contains a basic list of all common Brightway commands.

Prerequisites

1. A working installation of Brightway.

2. Basic knowledge of Python data types.

3. Basic understanding of matrix-based LCA data and calculations

All the commands below assume you have imported the Brightway core libraries:

Assumed imports

import bw2analyzer as ba
import bw2calc as bc
import bw2data as bd
import bw2io as bi

We will also use the convention that '<replace_me>' is a string which you need to change for your particular use case.

Recommended practice

Python is a flexible language, and there are many ways to do some of the following operations. We list below our recommended commands to execute these common tasks, and this is the interface we will try to keep compatible with future development. We therefore encourage using these patterns, even if you are used to something different.

Table of Contents

• Cheat Sheet
• Projects
  • Project Activation and Manipulation
  • Creating Initial Project Data
  • Archiving, Restoring, and Sharing Projects
• Databases
  • Metadata
  • Searching
  • Datapackages
• Inventory Graph
  • Nodes
  • Node Properties
  • Edges
  • Edge Properties
• Impact Assessment
  • Impact Categories (Method)
• LCA Calculations
  • Single Functional Unit and LCIA Set
  • Multiple Functional Units and LCIA Sets
  • Stochastic LCA Calculations (Monte Carlo)
• Importing Data
  • Creating Importers
  • Ecoinvent
  • Applying Transformations
  • Creating Links
  • Linking Status
  • Handling Unlinked Edges