version-3.6.x
Walkthrough
Advanced Usage
Getting Data from a Package
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import quilt3
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p = quilt3.Package.browse('aleksey/hurdat', 's3://quilt-example')
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p
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Loading manifest: 100%|██████████| 7/7 [00:00<00:00, 8393.40entries/s]
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(remote Package)
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└─.gitignore
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└─.quiltignore
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└─notebooks/
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└─QuickStart.ipynb
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└─quilt_summarize.json
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└─requirements.txt
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└─scripts/
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└─build.py
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Slicing through a package
Use
dict key selection to slice into a package tree:1
# returns PackageEntry("requirements.txt")
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p["requirements.txt"]
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PackageEntry('s3://quilt-example/aleksey/hurdat/requirements.txt?versionId=bQtxuZlaylNVHi0GmxkSMofT5qXJvP95')
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# returns (remote Package)
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p["notebooks"]
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(remote Package)
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└─QuickStart.ipynb
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Slicing into a
Package directory returns another Package rooted at that subdirectory. Slicing into a package entry returns an individual PackageEntry.Downloading package data to disk
To download a subset of files from a package directory to a
dest, use fetch:1
# download a subfolder
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p["notebooks"].fetch()
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​
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# download a single file
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p["notebooks"]["QuickStart.ipynb"].fetch()
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# download everything
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p.fetch()
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Copying objects: 100%|██████████| 36.7k/36.7k [00:01<00:00, 22.7kB/s]
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100%|██████████| 36.7k/36.7k [00:01<00:00, 24.1kB/s]
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Copying objects: 100%|██████████| 39.9k/39.9k [00:02<00:00, 16.5kB/s]
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(local Package)
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└─.gitignore
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└─.quiltignore
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└─notebooks/
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└─QuickStart.ipynb
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└─quilt_summarize.json
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└─requirements.txt
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└─scripts/
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└─build.py
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fetch will default to downloading the files to the current directory, but you can also specify an alternative path:1
p["notebooks"]["QuickStart.ipynb"].fetch("./references/")
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100%|██████████| 36.7k/36.7k [00:01<00:00, 22.5kB/s]
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PackageEntry('file:///Users/gregezema/Documents/programs/quilt/docs/Walkthrough/references/')
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Downloading package data into memory
Alternatively, you can download data directly into memory:
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p["quilt_summarize.json"].deserialize()
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['notebooks/QuickStart.ipynb']
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To apply a custom deserializer to your data, pass the function as a parameter to the function. For example, to load a hypothetical
yaml file using yaml.safe_load:1
import yaml
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# returns a dict
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p["quilt_summarize.json"].deserialize(yaml.safe_load)
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['notebooks/QuickStart.ipynb']
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The deserializer should accept a byte stream as input.
Getting entry locations
You can get the path to a package entry or directory using
get:1
# returns /path/to/pkg/root/notebooks/QuickStart.ipynb
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p["notebooks"]["QuickStart.ipynb"].get()
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's3://quilt-example/aleksey/hurdat/notebooks/QuickStart.ipynb?versionId=PH.9gsCH6LM9RQIqsy1U4X6H6s.VoQ_B'
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Getting metadata
Metadata is available using the
meta property.1
# get entry metadata
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p["notebooks"]["QuickStart.ipynb"].meta
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# get directory metadata
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p["notebooks"].meta
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# get package metadata
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p.meta
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Last modified 1mo ago