Function _format_callbacks

Lib/asyncio/base_futures.py:24–41

helper function for Future.__repr__

(cb)

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):