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/lib64/python3.12/asyncio/base_futures.py

__all__ = ()

import reprlib

from . import format_helpers

# States for Future.
_PENDING = 'PENDING'
_CANCELLED = 'CANCELLED'
_FINISHED = 'FINISHED'


def isfuture(obj):
    """Check for a Future.

    This returns True when obj is a Future instance or is advertising
    itself as duck-type compatible by setting _asyncio_future_blocking.
    See comment in Future for more details.
    """
    return (hasattr(obj.__class__, '_asyncio_future_blocking') and
            obj._asyncio_future_blocking is not None)


def _format_callbacks(cb):
    """helper function for Future.__repr__"""
    size = len(cb)
    if not size:
        cb = ''

    def format_cb(callback):
        return format_helpers._format_callback_source(callback, ())

    if size == 1:
        cb = format_cb(cb[0][0])
    elif size == 2:
        cb = '{}, {}'.format(format_cb(cb[0][0]), format_cb(cb[1][0]))
    elif size > 2:
        cb = '{}, <{} more>, {}'.format(format_cb(cb[0][0]),
                                        size - 2,
                                        format_cb(cb[-1][0]))
    return f'cb=[{cb}]'


def _future_repr_info(future):
    # (Future) -> str
    """helper function for Future.__repr__"""
    info = [future._state.lower()]
    if future._state == _FINISHED:
        if future._exception is not None:
            info.append(f'exception={future._exception!r}')
        else:
            # use reprlib to limit the length of the output, especially
            # for very long strings
            result = reprlib.repr(future._result)
            info.append(f'result={result}')
    if future._callbacks:
        info.append(_format_callbacks(future._callbacks))
    if future._source_traceback:
        frame = future._source_traceback[-1]
        info.append(f'created at {frame[0]}:{frame[1]}')
    return info


@reprlib.recursive_repr()
def _future_repr(future):
    info = ' '.join(_future_repr_info(future))
    return f'<{future.__class__.__name__} {info}>'

Name	Size	Perms	Modified	Actions
__pycache__ DIR	-	drwxr-xr-x	2026-01-08 23:02:23	Edit Download recursive recursive
base_events.py	76.73 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
base_futures.py	1.93 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
base_subprocess.py	8.66 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
base_tasks.py	2.61 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
constants.py	1.38 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
coroutines.py	3.26 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
events.py	28.65 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
exceptions.py	1.71 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
format_helpers.py	2.35 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
futures.py	14.00 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
locks.py	18.55 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
log.py	124 B	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
mixins.py	481 B	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
proactor_events.py	32.71 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
protocols.py	6.79 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
queues.py	7.79 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
runners.py	7.06 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
selector_events.py	47.20 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
sslproto.py	31.15 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
staggered.py	6.91 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
streams.py	26.97 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
subprocess.py	7.56 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
taskgroups.py	9.33 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
tasks.py	36.49 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
threads.py	790 B	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
timeouts.py	5.20 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
transports.py	10.47 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
trsock.py	2.42 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
unix_events.py	51.88 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
windows_events.py	31.82 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
windows_utils.py	4.94 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
__init__.py	1.19 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
__main__.py	3.41 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive

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