Function is_reactorless

scrapy/utils/reactorless.py:16–30

Check if we are running in the reactorless mode, i.e. with :setting:`TWISTED_REACTOR_ENABLED` set to ``False``. As this checks the runtime state and not the setting itself, it can be wrong when executed very early, before the reactor and/or the asyncio event loop are initialized.

()

def is_reactorless() -> bool:
    """Check if we are running in the reactorless mode, i.e. with
    :setting:`TWISTED_REACTOR_ENABLED` set to ``False``.

    As this checks the runtime state and not the setting itself, it can be
    wrong when executed very early, before the reactor and/or the asyncio event
    loop are initialized.

    .. note:: As this function uses
        :func:`scrapy.utils.asyncio.is_asyncio_available()`, it has the same
        limitations for detecting a running asyncio event loop as that one.

    .. versionadded:: 2.15.0
    """
    return is_asyncio_available() and not is_reactor_installed()


class ReactorImportHook(MetaPathFinder):