| :mod:`apt.package` --- Classes for package handling | |
| ==================================================== | |
| .. automodule:: apt.package | |
| The Package class | |
| ----------------- | |
| .. autoclass:: Package | |
| :members: | |
| .. note:: | |
| Several methods have been deprecated in version 0.7.9 of python-apt, | |
| please see the :class:`Version` class for the new alternatives. | |
| The Version class | |
| ----------------- | |
| .. autoclass:: Version | |
| :members: | |
| Dependency Information | |
| ---------------------- | |
| .. autoclass:: BaseDependency | |
| :members: | |
| .. class:: Dependency | |
| The dependency class represents a Or-Group of dependencies. It provides | |
| an attribute to access the :class:`BaseDependency` object for the available | |
| choices. | |
| .. attribute:: or_dependencies | |
| A list of :class:`BaseDependency` objects which could satisfy the | |
| requirement of the Or-Group. | |
| Origin Information | |
| ------------------- | |
| .. class:: Origin | |
| The :class:`Origin` class provides access to the origin of the package. | |
| It allows you to check the component, archive, the hostname, and even if | |
| this package can be trusted. | |
| .. attribute:: archive | |
| The archive (eg. unstable) | |
| .. attribute:: component | |
| The component (eg. main) | |
| .. attribute:: label | |
| The Label, as set in the Release file | |
| .. attribute:: origin | |
| The Origin, as set in the Release file | |
| .. attribute:: site | |
| The hostname of the site. | |
| .. attribute:: trusted | |
| Boolean value whether this is trustworthy. An origin can be trusted, if | |
| it provides a GPG-signed Release file and the GPG-key used is in the | |
| keyring used by apt (see apt-key). | |
| The Record class | |
| ----------------- | |
| .. autoclass:: Record | |
| :members: | |
| .. note:: | |
| .. versionchanged:: 0.7.100 | |
| This class is a subclass of :class:`collections.Mapping` when used | |
| in Python 2.6 or newer. | |
| .. describe:: record[name] | |
| Return the value of the field with the name *name*. | |
| .. describe:: name in record | |
| Return whether a field *name* exists in record. | |
| .. describe:: len(record) | |
| The number of fields in the record | |
| .. describe:: str(record) | |
| Display the record as a string | |
| Examples | |
| --------- | |
| .. code-block:: python | |
| import apt | |
| cache = apt.Cache() | |
| pkg = cache['python-apt'] # Access the Package object for python-apt | |
| print('python-apt is trusted:', pkg.candidate.origins[0].trusted) | |
| # Mark python-apt for install | |
| pkg.mark_install() | |
| print('python-apt is marked for install:', pkg.marked_install) | |
| print('python-apt is (summary):', pkg.candidate.summary) | |
| # Now, really install it | |
| cache.commit() | |