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Miss Islington (bot)
2dd5d4e1ec
gh-150579: use lazy imports for concurrent.futures (GH-150585)
This module has a manual lazy import hack using `__getattr__`. Now that lazy imports exist and cannot be disabled, this could use lazy imports instead.
Key differences: this will now show up in sys.lazy_modules when accessed. Error messages should be a bit better without the wrapper `__getattr__` involved. That's the only differences I can think of.
(cherry picked from commit 423ae0ff36)
Signed-off-by: Henry Schreiner <henryfs@princeton.edu>
Co-authored-by: Henry Schreiner <henryfs@princeton.edu>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
# Copyright 2009 Brian Quinlan. All Rights Reserved.
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# Licensed to PSF under a Contributor Agreement.
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"""Execute computations asynchronously using threads or processes."""
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__author__ = 'Brian Quinlan (brian@sweetapp.com)'
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from concurrent.futures._base import (FIRST_COMPLETED,
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FIRST_EXCEPTION,
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ALL_COMPLETED,
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CancelledError,
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TimeoutError,
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InvalidStateError,
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BrokenExecutor,
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Future,
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Executor,
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wait,
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as_completed)
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lazy from .process import ProcessPoolExecutor
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lazy from .thread import ThreadPoolExecutor
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__all__ = [
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'FIRST_COMPLETED',
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'FIRST_EXCEPTION',
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'ALL_COMPLETED',
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'CancelledError',
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'TimeoutError',
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'InvalidStateError',
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'BrokenExecutor',
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'Future',
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'Executor',
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'wait',
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'as_completed',
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'ProcessPoolExecutor',
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'ThreadPoolExecutor',
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]
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try:
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import _interpreters
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except ImportError:
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_interpreters = None
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if _interpreters:
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lazy from .interpreter import InterpreterPoolExecutor # noqa: F401
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__all__.append('InterpreterPoolExecutor')
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def __dir__():
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return __all__ + ['__author__', '__doc__']
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