Package zeroinstall

The Python implementation of the Zero Install injector is divided into five sub-packages:

zeroinstall.cmd contains one module for each 0install sub-command (providing the shell-scripting interface)
zeroinstall.injector contains most of the interesting stuff for managing feeds, keys and downloads and for selecting versions
zeroinstall.zerostore contains low-level code for handling the implementation cache (where unpacked packages are stored)
zeroinstall.gtkui contains code for making GTK user-interfaces
zeroinstall.support contains helper code (not really specific to Zero Install)

Submodules

zeroinstall.alias: Support code for 0alias scripts.
zeroinstall.apps: Support for managing apps (as created with "0install add").
zeroinstall.cmd: The 0install command-line interface.
- zeroinstall.cmd.add: The 0install add command-line interface.
- zeroinstall.cmd.add_feed: The 0install add-feed command-line interface.
- zeroinstall.cmd.config: The 0install config command-line interface.
- zeroinstall.cmd.destroy: The 0install destroy command-line interface.
- zeroinstall.cmd.digest: The 0install digest command-line interface.
- zeroinstall.cmd.download: The 0install download command-line interface.
- zeroinstall.cmd.import: The 0install import command-line interface.
- zeroinstall.cmd.list: The 0install list command-line interface.
- zeroinstall.cmd.list_feeds: The 0install list-feeds command-line interface.
- zeroinstall.cmd.man: The 0install man command-line interface.
- zeroinstall.cmd.remove_feed: The 0install remove-feed command-line interface.
- zeroinstall.cmd.run: The 0install run command-line interface.
- zeroinstall.cmd.search: The 0install search command-line interface.
- zeroinstall.cmd.select: The 0install select command-line interface.
- zeroinstall.cmd.show: The 0install show command-line interface.
- zeroinstall.cmd.update: The 0install download command-line interface.
- zeroinstall.cmd.whatchanged: The 0install whatchanged command-line interface.
zeroinstall.gtkui: GTK user interface.
- zeroinstall.gtkui.addbox: A GTK dialog which lets the user add a new application to their desktop.
- zeroinstall.gtkui.applistbox: A GTK dialog which displays a list of Zero Install applications in the menu.
- zeroinstall.gtkui.cache: Display the contents of the implementation cache.
- zeroinstall.gtkui.desktop: Code for the 0desktop command.
- zeroinstall.gtkui.gtkutils: Useful utility methods for GTK.
- zeroinstall.gtkui.help_box: A dialog box for displaying help text.
- zeroinstall.gtkui.icon: Loading icons.
- zeroinstall.gtkui.pygtkcompat: PyGTK compatibility layer.
- zeroinstall.gtkui.trust_box: A dialog box for confirming GPG keys.
- zeroinstall.gtkui.xdgutils: Adding icons and menu items using the freedesktop.org system.
zeroinstall.helpers: Convenience routines for performing common operations.
zeroinstall.injector: Code relating to interfaces and policies.
- zeroinstall.injector._download_child
- zeroinstall.injector._runenv: Helper script for <executable> bindings.
- zeroinstall.injector.arch: Information about the current system's architecture.
- zeroinstall.injector.background: Check for updates in a background process.
- zeroinstall.injector.cli: The 0launch command-line interface.
- zeroinstall.injector.config: Holds user settings and various helper objects.
- zeroinstall.injector.distro: Integration with native distribution package managers.
- zeroinstall.injector.download: Handles URL downloads.
- zeroinstall.injector.driver: This class brings together a solve.Solver to choose a set of implmentations, a fetch.Fetcher to download additional components, and the user's configuration settings.
- zeroinstall.injector.fetch: Downloads feeds, keys, packages and icons.
- zeroinstall.injector.gpg: Python interface to GnuPG.
- zeroinstall.injector.handler: Integrates download callbacks with an external mainloop.
- zeroinstall.injector.iface_cache: Manages the feed cache.
- zeroinstall.injector.model: In-memory representation of interfaces and other data structures.
- zeroinstall.injector.namespaces: Useful constants.
- zeroinstall.injector.packagekit: PackageKit integration.
- zeroinstall.injector.policy
- zeroinstall.injector.qdom: A quick DOM implementation.
- zeroinstall.injector.reader: Parses an XML feed into a Python representation.
- zeroinstall.injector.requirements: Holds information about what the user asked for (which program, version constraints, etc).
- zeroinstall.injector.run: Executes a set of implementations as a program.
- zeroinstall.injector.sat: Internal implementation of a SAT solver, used by solver.SATSolver.
- zeroinstall.injector.scheduler: Manage pools of connections so that we can limit the number of requests per site and reuse connections.
- zeroinstall.injector.selections: Load and save a set of chosen implementations.
- zeroinstall.injector.solver: Chooses a set of components to make a running program.
- zeroinstall.injector.trust: Records who we trust to sign feeds.
- zeroinstall.injector.versions: Functions for processing version numbers.
- zeroinstall.injector.writer: Save per-interface and per-feed configuration information.
zeroinstall.support: Useful support routines (for internal use).
- zeroinstall.support.basedir: Support code for the freedesktop.org basedir spec.
- zeroinstall.support.escaping: Functions for escaping and unescaping strings (for URLs, filenames, etc).
- zeroinstall.support.ssl_match_hostname: This is a temporary hack to fix an SSL bug in Python versions before 3.2.
- zeroinstall.support.tasks: The tasks module provides a simple light-weight alternative to threads.
- zeroinstall.support.xmltools: Convenience functions for handling XML.
zeroinstall.zerostore: Code for managing the implementation cache.
- zeroinstall.zerostore.cli: Code for the 0store command-line interface.
- zeroinstall.zerostore.manifest: Processing of implementation manifests.
- zeroinstall.zerostore.optimise: Optimise the cache.
- zeroinstall.zerostore.unpack: Unpacking archives of various formats.

Classes
	SafeException An exception that can be reported to the user without a stack trace.
	NeedDownload Thrown if we tried to start a download and downloading is disabled.
	DryRun We can't do something because this is a dry run (--dry-run).

Variables
	version = `'2.0'`
	logger = `logging.getLogger('0install')`
	localedir = `join(dirname(dirname(__file__)), 'share', 'locale')`
	translation = `gettext.translation('zero-install', localedir= l...`
	_ = `translation.gettext` a function for translating strings using the zero-install domain (for use internally by Zero Install)

Variables Details

translation

Value:

gettext.translation('zero-install', localedir= localedir, fallback= Tr
ue)