diff options
Diffstat (limited to 'yt_dlp/utils.py')
| -rw-r--r-- | yt_dlp/utils.py | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/yt_dlp/utils.py b/yt_dlp/utils.py index 2d5b9892d..ade2bbff1 100644 --- a/yt_dlp/utils.py +++ b/yt_dlp/utils.py @@ -4086,10 +4086,10 @@ class LazyList(collections.abc.Sequence): class IndexError(IndexError): pass - def __init__(self, iterable): + def __init__(self, iterable, *, reverse=False, _cache=None): self.__iterable = iter(iterable) - self.__cache = [] - self.__reversed = False + self.__cache = [] if _cache is None else _cache + self.__reversed = reverse def __iter__(self): if self.__reversed: @@ -4155,9 +4155,17 @@ class LazyList(collections.abc.Sequence): self.__exhaust() return len(self.__cache) - def reverse(self): - self.__reversed = not self.__reversed - return self + def __reversed__(self): + return type(self)(self.__iterable, reverse=not self.__reversed, _cache=self.__cache) + + def __copy__(self): + return type(self)(self.__iterable, reverse=self.__reversed, _cache=self.__cache) + + def __deepcopy__(self, memo): + # FIXME: This is actually just a shallow copy + id_ = id(self) + memo[id_] = self.__copy__() + return memo[id_] def __repr__(self): # repr and str should mimic a list. So we exhaust the iterable |