upstream/mercurial-mirror Files · mercurial/thirdparty/concurrent/futures/__init__.py

node: introduce nodeconstants class...

node: introduce nodeconstants class In preparing for moving from SHA1 hashes to a modern hash function, place nullid and other constant magic vules in a class. Provide the active set of constants in the repository and push it down. Provide nullid directly in strategic places like the repository as it is accessed very often. This changeset introduces the API change, but not the mechanical replacement of the node.py attributes itself. Differential Revision: https://phab.mercurial-scm.org/D9750

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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."""

      from __future__ import absolute_import

      __author__ = 'Brian Quinlan (brian@sweetapp.com)'

      from ._base import (

          FIRST_COMPLETED,

          FIRST_EXCEPTION,

          ALL_COMPLETED,

          CancelledError,

          TimeoutError,

          Future,

          Executor,

          wait,

          as_completed,

      )

      from .thread import ThreadPoolExecutor

      try:

          from .process import ProcessPoolExecutor

      except ImportError:

          # some platforms don't have multiprocessing

          pass

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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."""

				from __future__ import absolute_import

				__author__ = 'Brian Quinlan (brian@sweetapp.com)'

				from ._base import (
				FIRST_COMPLETED,
				FIRST_EXCEPTION,
				ALL_COMPLETED,
				CancelledError,
				TimeoutError,
				Future,
				Executor,
				wait,
				as_completed,
				)
				from .thread import ThreadPoolExecutor

				try:
				from .process import ProcessPoolExecutor
				except ImportError:
				# some platforms don't have multiprocessing
				pass