Installing a Package

Searching for packages
As explained in "Uploading a Package", packages are managed using registries. There is a one local registry on your machine, and potentially many remote registries elsewhere "in the world". Use list_packages to see the packages available on a registry:
$ python
>>> import quilt3
​
>>> quilt3.list_packages()  # list local packages
​
PACKAGE                            TOPHASH        CREATED        SIZE
namespace/packagename:latest       cac145b9c3dc   just now       2.4 GB
othernamespace/packagename:latest  95a134c80z48   14 days ago    2.4 GB
​
>>> quilt3.list_packages("s3://my-bucket")  # list remote packages
​
PACKAGE                            TOPHASH        CREATED        SIZE
user1/seattle-weather:latest       cac145b9c3dc   1 hour ago     2.4 GB
user2/new-york-ballgames:latest    95a134c80z48   6 days ago     2.4 GB
Installing a package
To make a remote package and all of its data available locally, install it.
import quilt3
p = quilt3.Package.install(
    "username/packagename",
    "s3://your-bucket",
)
Note that unless this registry is public, you will need to be logged into a user who has read access to this registry in order to install from it:
import quilt3
quilt3.config('https://your-catalog-homepage/')  # only need to run this once
quilt3.login()  # follow the instructions to finish login
Installing a package downloads all of the data and populates an entry for the package in your local registry.
You can omit registry if you configure a default remote registry (this will persists between sessions):
quilt3.config(default_remote_registry='s3://your-bucket')
​
# this now 'just works'
quilt3.Package.install("username/packagename")
Data files that you download are written to a folder in your local registry by default. You can specify an alternative destination using dest:
quilt3.Package.install("username/packagename", dest="./")
Finally, you can install a specific version of a package by specifying the corresponding top hash:
quilt3.Package.install("username/packagename", top_hash="abcd1234")
Browsing a package manifest
An alternative to install is browse. browse downloads a package manifest without also downloading the data in the package.
import quilt3
​
# load a package manifest from a remote registry
p  = quilt3.Package.browse("username/packagename", "s3://your-bucket")
​
# load a package manifest from the default remote registry
p  = quilt3.Package.browse("username/packagename")
​
# load a package manifest from the local registry
p = quilt3.Package.browse("username/packagename", "local")
browse is advantageous when you don't want to download everything in a package at once. For example if you just want to look at a package's metadata.
Importing a package
You can import a local package from within Python:
from quilt3.data.username import packagename
This allows you to manage your data and code dependencies all in one place in your Python scripts or Jupyter notebooks.
Walkthrough - Previous
Uploading a Package
Next - Walkthrough
Getting Data from a Package
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