def test_plugin_by_name():
BaseThing = plugin_by_name(base_registry.BaseThing)
BasePlugin = plugin_by_name(base_registry.BasePlugin)
from entry_points.base.thing import BaseThing as BaseThingImported
from entry_points.plugins.base.plugin import BasePlugin as BasePluginImported
assert BaseThing == BaseThingImported
assert BasePlugin == BasePluginImported
from entry_points.base.discovery import plugin_by_name
from entry_points.plugins.base import registry
BasePlugin = plugin_by_name(registry.BasePlugin)
class ReadyPlugin(BasePlugin):
ready_methods = []
def is_ready(self):
return all(method(self) for method in self.ready_methods)
from entry_points.base.discovery import plugin_by_name
from entry_points.plugins.base import registry as base_registry
from entry_points.plugins.ready import registry as ready_registry
BaseThing = plugin_by_name(base_registry.BaseThing)
ReadyPlugin = plugin_by_name(ready_registry.ReadyPlugin)
class ReadyThing(BaseThing, ReadyPlugin):
def always_true(self):
return True
ready_methods = [always_true]
class UnreadyThing(BaseThing, ReadyPlugin):
def always_false(self):
return False
ready_methods = [always_false]
def do_expensive_setup(self):
self._expensive = plugin_by_name(expensive_registry.ExpensivePlugin)()
from entry_points.base.discovery import plugin_by_name
from entry_points.plugins.base import registry as base_registry
from entry_points.plugins.ready import registry as ready_registry
from entry_points.plugins.health import registry as health_registry
from entry_points.plugins.expensive import registry as expensive_registry
BaseThing = plugin_by_name(base_registry.BaseThing)
ReadyPlugin = plugin_by_name(ready_registry.ReadyPlugin)
HealthPlugin = plugin_by_name(health_registry.HealthPlugin)
class ImplementedThingExpensive(BaseThing, ReadyPlugin, HealthPlugin):
"""Example of how to dynamically import an expensive-to-import module using entry point plugins."""
def __init__(self):
self._expensive = None
def do_expensive_setup(self):
self._expensive = plugin_by_name(expensive_registry.ExpensivePlugin)()
def do_expensive_thing(self):
self._expensive.do_expensive()
from entry_points.base.discovery import plugin_by_name
from entry_points.plugins.base import registry as base_registry
from entry_points.plugins.health import registry as health_registry
BaseThing = plugin_by_name(base_registry.BaseThing)
HealthPlugin = plugin_by_name(health_registry.HealthPlugin)
class HealthyThing(BaseThing, HealthPlugin):
def always_true(self):
return True
health_methods = [always_true]
class UnhealthyThing(BaseThing, HealthPlugin):
def always_false(self):
return False
health_methods = [always_false]