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# Copyright 2009 Brian Quinlan. All Rights Reserved.
# Licensed to PSF under a Contributor Agreement.
"""Execute computations asynchronously using threads or processes."""
__author__ = 'Brian Quinlan (brian@sweetapp.com)'
from concurrent.futures._base import (FIRST_COMPLETED,
FIRST_EXCEPTION,
ALL_COMPLETED,
CancelledError,
TimeoutError,
InvalidStateError,
BrokenExecutor,
Future,
Executor,
wait,
as_completed)
__all__ = [
'FIRST_COMPLETED',
'FIRST_EXCEPTION',
'ALL_COMPLETED',
'CancelledError',
'TimeoutError',
'InvalidStateError',
'BrokenExecutor',
'Future',
'Executor',
'wait',
'as_completed',
'ProcessPoolExecutor',
'ThreadPoolExecutor',
]
try:
import _interpreters
except ImportError:
_interpreters = None
if _interpreters:
__all__.append('InterpreterPoolExecutor')
def __dir__():
return __all__ + ('__author__', '__doc__')
def __getattr__(name):
global ProcessPoolExecutor, ThreadPoolExecutor, InterpreterPoolExecutor
if name == 'ProcessPoolExecutor':
from .process import ProcessPoolExecutor
return ProcessPoolExecutor
if name == 'ThreadPoolExecutor':
from .thread import ThreadPoolExecutor
return ThreadPoolExecutor
if _interpreters and name == 'InterpreterPoolExecutor':
from .interpreter import InterpreterPoolExecutor
return InterpreterPoolExecutor
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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