U ?h@sdddZdS)NcCsPt|}t||}z t|}Wntk r2YnXd||}|pJt||S)a(If *iterable* has only one item, return it. If it has zero items, return *default*. If it has more than one item, raise the exception given by *too_long*, which is ``ValueError`` by default. >>> only([], default='missing') 'missing' >>> only([1]) 1 >>> only([1, 2]) # doctest: +IGNORE_EXCEPTION_DETAIL Traceback (most recent call last): ... ValueError: Expected exactly one item in iterable, but got 1, 2, and perhaps more.' >>> only([1, 2], too_long=TypeError) # doctest: +IGNORE_EXCEPTION_DETAIL Traceback (most recent call last): ... TypeError Note that :func:`only` attempts to advance *iterable* twice to ensure there is only one item. See :func:`spy` or :func:`peekable` to check iterable contents less destructively. zLExpected exactly one item in iterable, but got {!r}, {!r}, and perhaps more.)iternext StopIterationformat ValueError)iterabledefaultZtoo_longitZ first_valueZ second_valuemsgr P/var/www/html/venv/lib/python3.8/site-packages/importlib_resources/_itertools.pyonlys   r )NN)r r r r r