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How to use plugin_method method in Slash

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manager.py

Source:manager.py

1#coding:utf-82import functools3from cactus.utils.internal import getargspec4from cactus.plugin import defaults5class PluginManager(object):6    def __init__(self, site, loaders):7        self.site = site8        self.loaders = loaders9        self.reload()10        for plugin_method in defaults.DEFAULTS:11            if not hasattr(self, plugin_method):12                setattr(self, plugin_method, functools.partial(self.call, plugin_method))13    def reload(self):14        plugins = []15        for loader in self.loaders:16            plugins.extend(loader.load())17        self.plugins = sorted(plugins, key=lambda plugin: plugin.ORDER)18    def call(self, method, *args, **kwargs):19        """20        Call each plugin21        """22        for plugin in self.plugins:23            _meth = getattr(plugin, method)24            _meth(*args, **kwargs)25    def preBuildPage(self, site, page, context, data):26        """27        Special call as we have changed the API for this.28        We have two calling conventions:29        - The new one, which passes page, context, data30        - The deprecated one, which also passes the site (Now accessible via the page)31        """32        for plugin in self.plugins:33            # Find the correct calling convention34            new = [page, context, data]35            deprecated = [site, page, context, data]36            arg_lists = dict((len(l), l) for l in [deprecated, new])37            try:38                # Try to find the best calling convention39                n_args = len(getargspec(plugin.preBuildPage).args)40                # Just use the new calling convention if there's fancy usage of41                # *args, **kwargs that we can't control.42                arg_list = arg_lists.get(n_args, new)43            except NotImplementedError:44                # If we can't get the number of args, use the new one.45                arg_list = new46            # Call with the best calling convention we have.47            # If that doesn't work, then we'll let the error escalate.48            context, data = plugin.preBuildPage(*arg_list)...

__init__.py

Source:__init__.py

1import sys2def delayed_plugin(module, fname, package='divisi2.algorithms'):3    modname = package+'.'+module4    def plugin_method(*args, **kw):5        """6        Sorry, this meta-code won't be too informative. If you're seeing this in7        IPython's ?? mode, try a single question mark instead.8        """9        __import__(modname)10        mod = sys.modules[modname]11        func = getattr(mod, fname)12        return func(*args, **kw)13    plugin_method.__name__ = fname14    plugin_method.__doc__ = """15    Import the %(fname)s algorithm and perform it on this matrix.16    More information is available in the documentation for17    :func:`%(modname)s.%(fname)s`.18    """ % locals()...

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