quickstart
import os from pluginmanager.tests.compat import tempfile tempdirectory = tempfile.TemporaryDirectory() plugin_directory_path = tempdirectory.name path = os.path.join(tempdirectory.name, 'test.py') with open(path, 'w+') as f: f.write('from pluginmanager import IPluginnclass Test(IPlugin):n pass')
python plugin management, simplified.
Library under development. Contains rough edges/unfinished functionality. API subject to changes.
pip install pluginmanager-or- :
pip install git+https://github.com/benhoff/pluginmanager.gitfrom pluginmanager import PluginInterface
plugin_interface = PluginInterface()
plugin_interface.set_plugin_directories(plugin_directory_path)
plugin_interface.collect_plugins()
plugins = plugin_interface.get_instances()The quickstart will only work if you subclass IPlugin for your custom plugins.
import pluginmanager
class MyCustomPlugin(pluginmanager.IPlugin):
def __init__(self):
self.name = 'custom_name'
super().__init__()Or register your class as subclass of IPlugin.
import pluginmanager
pluginmanager.IPlugin.register(YourClassHere)Add classes.
import pluginmanager
class CustomClass(pluginmanager.IPlugin):
pass
plugin_interface = pluginmanager.PluginInterface()
plugin_interface.add_plugins(CustomClass)
plugins = plugin_interface.get_instances()Alternatively, add instances.
import pluginmanager
class CustomClass(pluginmanager.IPlugin):
pass
custom_class_instance = CustomClass()
plugin_interface = pluginmanager.PluginInterface()
plugin_interface.add_plugins(custom_class_instance)
plugins = plugin_interface.get_instances()pluginmanager is defaulted to automatically instantiate unique instances. Disable automatic instantiation.
import pluginmanager
plugin_interface = pluginmanager.PluginInterface()
plugin_manager = plugin_interface.plugin_manager
plugin_manager.instantiate_classes = FalseDisable uniqueness (Only one instance of class per pluginmanager)
import pluginmanager
plugin_interface = pluginmanager.PluginInterface()
plugin_manager = plugin_interface.plugin_manager
plugin_manager.unique_instances = FalsePass in a class to get back just the instances of a class
import pluginmanager
class MyPluginClass(pluginmanager.IPlugin):
pass
plugin_interface = pluginmanager.PluginInterface()
plugin_interface.add_plugins(MyPluginClass)
all_instances_of_class = plugin_interface.get_instances(MyPluginClass)Alternatively, create and pass in your own custom filters. Either make a class based filter
# create a custom plugin class
class Plugin(pluginmanager.IPlugin):
def __init__(self, name):
self.name = name
# create a custom filter
class NameFilter(object):
def __init__(self, name):
self.stored_name = name
def __call__(self, plugins):
result = []
for plugin in plugins:
if plugin.name == self.stored_name:
result.append(plugin)
return result
# create an instance of our custom filter
mypluginclass_name_filter = NameFilter('good plugin')
plugin_interface = pluginmanager.PluginInterface()
plugin_interface.add_plugins([Plugin('good plugin'),
Plugin('bad plugin')])
filtered_plugins = plugin_interface.get_instances(mypluginclass_name_filter)Or make a function based filter
# create a custom plugin class
class Plugin(pluginmanager.IPlugin):
def __init__(self, name):
self.name = name
# create a function based filter
def custom_filter(plugins):
result = []
for plugin in plugins:
if plugin.name == 'good plugin':
result.append(plugin)
return result
plugin_interface = pluginmanager.PluginInterface()
plugin_interface.add_plugins([Plugin('good plugin'),
Plugin('bad plugin')])
filtered_plugins = plugin_interface.get_instances(mypluginclass_name_filter)pluginmanager
DirectoryManager FileManager ModuleManager PluginManager PluginInterface
genindexmodindexsearch
tempdirectory.cleanup()
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