mercurial/thirdparty/concurrent/futures/__init__.py

filemerge: drop a default argument to appease pytype

The function slices and takes the length of this argument without internally
setting it if not provided.  There was no bug here because both callers passed
the argument.

Differential Revision: https://phab.mercurial-scm.org/D7464

# 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 ([e-mail])'

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