autoinstall package loader for auto installing Python packages. package loader for auto installing Python packages. A package loader in the spirit of Zero Install that can be used to inject dependencies into the import process. To install:: easy_install -U autoinstall or download, unpack, python setup.py install or try the bootstrap loader. See below. To use:: # You can bind any package name to a URL pointing to something # that can be imported using the zipimporter. autoinstall.bind("pymarc", "http://pypi.python.org/packages/2.5/p/pymarc/pymarc-2.1-py2.5.egg") import pymarc print pymarc.__version__, pymarc.__file__ Changelog:: - added support for non top level packages. - cache files now use filename part from URL. TODO:: - a more fitting name - a description of the intended use case - address other issues pointed out in: http://mail.python.org/pipermail/python-dev/2008-March/077926.html Scribbles:: pull vs. push user vs. system web vs. filesystem auto vs. manual manage development sandboxes optional interfaces... def get_data(pathname) -> string with file data. Return the data associated with 'pathname'. Raise IOError if the file wasn't found."); def is_package, "is_package(fullname) -> bool. Return True if the module specified by fullname is a package. Raise ZipImportError is the module couldn't be found."); def get_code, "get_code(fullname) -> code object. Return the code object for the specified module. Raise ZipImportError is the module couldn't be found."); def get_source, "get_source(fullname) -> source string. Return the source code for the specified module. Raise ZipImportError is the module couldn't be found, return None if the archive does contain the module, but has no source for it."); Autoinstall can also be bootstraped with the nascent package loader bootstrap module. For example:: # or via the bootstrap # loader. try: _version = "0.1a2" import autoinstall if autoinstall.__version__ != _version: raise ImportError("A different version than expected found.") except ImportError, e: # http://svn.python.org/projects/sandbox/trunk/bootstrap/bootstrap.py import bootstrap pypi = "http://pypi.python.org" dir = "packages/source/a/autoinstall" url = "%s/%s/autoinstall-%s.tar.gz" % (pypi, dir, _version) bootstrap.main((url,)) import autoinstall References:: http://0install.net/ http://www.python.org/dev/peps/pep-0302/ http://svn.python.org/projects/sandbox/trunk/import_in_py http://0install.net/injector-find.html http://roscidus.com/desktop/node/903 Daniel Krech 8b39951d02f09185a13793244c61f8e3dbea61d0 0.1a2