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|
# -*- coding: utf-8 -*-
"""
pyee supplies a ``EventEmitter`` class that is similar to the
``EventEmitter`` class from Node.js. In addition, it supplies the subclasses
``AsyncIOEventEmitter``, ``TwistedEventEmitter`` and ``ExecutorEventEmitter``
for supporting async and threaded execution with asyncio, twisted, and
concurrent.futures Executors respectively, as supported by the environment.
Example
-------
::
In [1]: from pyee.base import EventEmitter
In [2]: ee = EventEmitter()
In [3]: @ee.on('event')
...: def event_handler():
...: print('BANG BANG')
...:
In [4]: ee.emit('event')
BANG BANG
In [5]:
"""
from warnings import warn
from pyee.base import EventEmitter as EventEmitter
from pyee.base import PyeeException
class BaseEventEmitter(EventEmitter):
"""
BaseEventEmitter is deprecated and an alias for EventEmitter.
"""
def __init__(self):
warn(
DeprecationWarning(
"pyee.BaseEventEmitter is deprecated and will be removed in a "
"future major version; you should instead use pyee.EventEmitter."
)
)
super(BaseEventEmitter, self).__init__()
__all__ = ["BaseEventEmitter", "EventEmitter", "PyeeException"]
try:
from pyee.asyncio import AsyncIOEventEmitter as _AsyncIOEventEmitter # noqa
class AsyncIOEventEmitter(_AsyncIOEventEmitter):
"""
AsyncIOEventEmitter has been moved to the pyee.asyncio module.
"""
def __init__(self, loop=None):
warn(
DeprecationWarning(
"pyee.AsyncIOEventEmitter has been moved to the pyee.asyncio "
"module."
)
)
super(AsyncIOEventEmitter, self).__init__(loop=loop)
__all__.append("AsyncIOEventEmitter")
except ImportError:
pass
try:
from pyee.twisted import TwistedEventEmitter as _TwistedEventEmitter # noqa
class TwistedEventEmitter(_TwistedEventEmitter):
"""
TwistedEventEmitter has been moved to the pyee.twisted module.
"""
def __init__(self):
warn(
DeprecationWarning(
"pyee.TwistedEventEmitter has been moved to the pyee.twisted "
"module."
)
)
super(TwistedEventEmitter, self).__init__()
__all__.append("TwistedEventEmitter")
except ImportError:
pass
try:
from pyee.executor import ExecutorEventEmitter as _ExecutorEventEmitter # noqa
class ExecutorEventEmitter(_ExecutorEventEmitter):
"""
ExecutorEventEmitter has been moved to the pyee.executor module.
"""
def __init__(self, executor=None):
warn(
DeprecationWarning(
"pyee.ExecutorEventEmitter has been moved to the pyee.executor "
"module."
)
)
super(ExecutorEventEmitter, self).__init__(executor=executor)
__all__.append("ExecutorEventEmitter")
except ImportError:
pass
try:
from pyee.trio import TrioEventEmitter as _TrioEventEmitter # noqa
class TrioEventEmitter(_TrioEventEmitter):
"""
TrioEventEmitter has been moved to the pyee.trio module.
"""
def __init__(self, nursery=None, manager=None):
warn(
DeprecationWarning(
"pyee.TrioEventEmitter has been moved to the pyee.trio module."
)
)
super(TrioEventEmitter, self).__init__(nursery=nursery, manager=manager)
__all__.append("TrioEventEmitter")
except (ImportError, SyntaxError):
pass
|
