Python module reference

This module reference extends the manual with a comprehensive overview of the available functionality built into datalad. Each module in the package is documented by a general summary of its purpose and the list of classes and functions it provides.

High-level user interface

Dataset operations

api.Dataset(path) Representation of a DataLad dataset/repository
api.create([path, initopts, force, …]) Create a new dataset from scratch.
api.create_sibling(sshurl[, name, …]) Create a dataset sibling on a UNIX-like Shell (local or SSH)-accessible machine
api.create_sibling_github(reponame[, …]) Create dataset sibling on GitHub.
api.create_sibling_gitlab([path, site, …]) Create dataset sibling at a GitLab site
api.drop([path, dataset, recursive, …]) Drop file content from datasets
api.get([path, source, dataset, recursive, …]) Get any dataset content (files/directories/subdatasets).
api.install([path, source, dataset, …]) Install a dataset from a (remote) source.
api.push([path, dataset, to, since, data, …]) Push a dataset to a known sibling.
api.remove([path, dataset, recursive, …]) Remove components from datasets[path, message, dataset, …]) Save the current state of a dataset
api.update([path, sibling, merge, how, …]) Update a dataset from a sibling.
api.uninstall([path, dataset, recursive, …]) Uninstall subdatasets
api.unlock([path, dataset, recursive, …]) Unlock file(s) of a dataset

Metadata handling[query, dataset, force_reindex, …]) Search dataset metadata
api.metadata([path, dataset, …]) Metadata reporting for files and entire datasets
api.aggregate_metadata([path, dataset, …]) Aggregate metadata of one or more datasets for later query.
api.extract_metadata(types[, files, dataset]) Run one or more of DataLad’s metadata extractors on a dataset or file.

Reproducible execution[cmd, dataset, inputs, outputs, …]) Run an arbitrary shell command and record its impact on a dataset.
api.rerun([revision, since, dataset, …]) Re-execute previous datalad run commands.
api.run_procedure([spec, dataset, discover, …]) Run prepared procedures (DataLad scripts) on a dataset

Plumbing commands

api.annotate_paths([path, dataset, …]) Analyze and act upon input paths
api.clean([dataset, what, dry_run, …]) Clean up after DataLad (possible temporary files etc.)
api.clone(source[, path, dataset, …]) Obtain a dataset (copy) from a URL or local directory
api.copy_file([path, dataset, recursive, …]) Copy files and their availability metadata from one dataset to another.
api.create_test_dataset([path, spec, seed]) Create test (meta-)dataset.
api.diff([path, fr, to, dataset, annex, …]) Report differences between two states of a dataset (hierarchy)
api.download_url(urls[, dataset, path, …]) Download content
api.sshrun(login, cmd[, port, ipv4, ipv6, …]) Run command on remote machines via SSH.
api.siblings([action, dataset, name, url, …]) Manage sibling configuration
api.subdatasets([path, dataset, fulfilled, …]) Report subdatasets and their properties.

Miscellaneous commands

api.add_archive_content(archive[, annex, …]) Add content of an archive under git annex control.
api.test([module, verbose, nocapture, pdb, stop]) Run internal DataLad (unit)tests.
api.add_readme(dataset[, filename, existing]) Add basic information about DataLad datasets to a README file
api.addurls(dataset, urlfile, urlformat, …) Create and update a dataset from a list of URLs.
api.check_dates(paths[, reference_date, …]) Find repository dates that are more recent than a reference date.
api.export_archive(dataset[, filename, …]) Export the content of a dataset as a TAR/ZIP archive.
api.export_to_figshare(dataset[, filename, …]) Export the content of a dataset as a ZIP archive to figshare
api.no_annex(dataset, pattern[, ref_dir, …]) Configure a dataset to never put some content into the dataset’s annex[dataset, sensitive, sections, …]) Generate a report about the DataLad installation and configuration

Support functionality

cmd Wrapper for command and function calls, allowing for dry runs and output handling
consts constants for datalad
support.gitrepo Internal low-level interface to Git repositories
support.annexrepo Interface to git-annex by Joey Hess.
support.archives Various handlers/functionality for different types of files (e.g.
customremotes.base Base classes to custom git-annex remotes (e.g.
customremotes.archives Custom remote to support getting the load from archives present under annex

Configuration management


Test infrastructure

tests.utils Miscellaneous utilities to assist with testing
tests.heavyoutput Helper to provide heavy load on stdout and stderr

Command line interface infrastructure