Constructor is a tool which allows constructing an installer for a collection of conda packages.
It solves needed packages using user-provided specifications, and bundles those packages.
It can currently create 3 kinds of installers, which are best thought of as delivery
vehicles for the bundled packages.
There are shell
.sh installers, macOS
.pkg installers, and Windows
Each of these will create an environment on the end user's system that contains the specs you provided, along with any necessary dependencies. These installers are similar to the Anaconda and Miniconda installers, and indeed constructor is used to create those installers.
constructor can be installed into any environment using:
$ conda install constructor
Once installed, the constructor command will be available:
$ constructor -h
constructor command takes an installer specification directory as its
argument. This directory needs to contain a file
which specifies the name of the installer, the conda channels to
pull packages from, the conda packages included in the installer, etc.
The complete list of keys in this file can be found in
Also, the directory may contain some additional optional files (such as a
license file, and image files for the Windows installer).
Examples for various installations are located in the
More details can be found in the documentation.
To build or update
CONSTRUCT.md at the root of the repo you'll need to install the
jinja2 package (
conda install jinja2) and then run
make doc, or invoke the
the script directly with