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Directory: /opt/alt/python39/lib64/python3.9/asyncio/

Command | New File | New Dir

File: runners.py

__all__ = 'run',

from . import coroutines
from . import events
from . import tasks

def run(main, *, debug=None):
    """Execute the coroutine and return the result.

This function runs the passed coroutine, taking care of
    managing the asyncio event loop and finalizing asynchronous
    generators.

This function cannot be called when another asyncio event loop is
    running in the same thread.

If debug is True, the event loop will be run in debug mode.

This function always creates a new event loop and closes it at the end.
    It should be used as a main entry point for asyncio programs, and should
    ideally only be called once.

Example:

async def main():
            await asyncio.sleep(1)
            print('hello')

asyncio.run(main())
    """
    if events._get_running_loop() is not None:
        raise RuntimeError(
            "asyncio.run() cannot be called from a running event loop")

if not coroutines.iscoroutine(main):
        raise ValueError("a coroutine was expected, got {!r}".format(main))

loop = events.new_event_loop()
    try:
        events.set_event_loop(loop)
        if debug is not None:
            loop.set_debug(debug)
        return loop.run_until_complete(main)
    finally:
        try:
            _cancel_all_tasks(loop)
            loop.run_until_complete(loop.shutdown_asyncgens())
            loop.run_until_complete(loop.shutdown_default_executor())
        finally:
            events.set_event_loop(None)
            loop.close()

def _cancel_all_tasks(loop):
    to_cancel = tasks.all_tasks(loop)
    if not to_cancel:
        return

for task in to_cancel:
        task.cancel()

loop.run_until_complete(
        tasks._gather(*to_cancel, loop=loop, return_exceptions=True))

for task in to_cancel:
        if task.cancelled():
            continue
        if task.exception() is not None:
            loop.call_exception_handler({
                'message': 'unhandled exception during asyncio.run() shutdown',
                'exception': task.exception(),
                'task': task,
            })

Name	Size	Permissions	Options
__pycache__	--	rwxr-xr-x	Rename \| Chmod \| Delete
base_events.py	74192 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
base_futures.py	2574 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
base_subprocess.py	8843 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
base_tasks.py	2467 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
constants.py	888 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
coroutines.py	8797 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
events.py	26451 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
exceptions.py	1633 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
format_helpers.py	2404 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
futures.py	14042 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
locks.py	15181 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
log.py	124 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
proactor_events.py	32146 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
protocols.py	6957 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
queues.py	8305 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
runners.py	2125 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
selector_events.py	39500 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
sslproto.py	27459 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
staggered.py	5992 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
streams.py	26656 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
subprocess.py	8070 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
tasks.py	34419 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
threads.py	790 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
transports.py	10724 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
trsock.py	5876 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
unix_events.py	51754 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
windows_events.py	33054 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
windows_utils.py	5060 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
__init__.py	1279 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
__main__.py	3379 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete