https://github.com/python/cpython/commit/a370eebdd9bcc18d39f9e5d886ddb91a2435033e
commit: a370eebdd9bcc18d39f9e5d886ddb91a2435033e
branch: 3.12
author: Miss Islington (bot) <[email protected]>
committer: rhettinger <[email protected]>
date: 2024-05-18T01:51:20-05:00
summary:
[3.12] Minor improvements to the docs for itertools.tee() (gh-119135)
(gh-119137)
files:
M Doc/library/itertools.rst
diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 183aa36d927550..cf2bbf0b1ae60a 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -690,18 +690,19 @@ loops that truncate the stream.
def tee(iterable, n=2):
iterator = iter(iterable)
- empty_link = [None, None] # Singly linked list: [value, link]
- return tuple(_tee(iterator, empty_link) for _ in range(n))
+ shared_link = [None, None]
+ return tuple(_tee(iterator, shared_link) for _ in range(n))
def _tee(iterator, link):
- while True:
- if link[1] is None:
- try:
- link[:] = [next(iterator), [None, None]]
- except StopIteration:
- return
- value, link = link
- yield value
+ try:
+ while True:
+ if link[1] is None:
+ link[0] = next(iterator)
+ link[1] = [None, None]
+ value, link = link
+ yield value
+ except StopIteration:
+ return
Once a :func:`tee` has been created, the original *iterable* should not be
used anywhere else; otherwise, the *iterable* could get advanced without
_______________________________________________
Python-checkins mailing list -- [email protected]
To unsubscribe send an email to [email protected]
https://mail.python.org/mailman3/lists/python-checkins.python.org/
Member address: [email protected]
