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| author | Sandro Tosi <sandro.tosi@gmail.com> | 2012-08-15 19:37:35 (GMT) |
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| committer | Sandro Tosi <sandro.tosi@gmail.com> | 2012-08-15 19:37:35 (GMT) |
| commit | dd7c55250d67de4d430a0c51dba4f3c0cd8f6ed3 (patch) | |
| tree | df7dec7867727d322742c80a6c06442d1765b369 | |
| parent | ee0a945ae4077d9e4ffdb77e247ed13265316897 (diff) | |
| download | cpython-dd7c55250d67de4d430a0c51dba4f3c0cd8f6ed3.zip cpython-dd7c55250d67de4d430a0c51dba4f3c0cd8f6ed3.tar.gz cpython-dd7c55250d67de4d430a0c51dba4f3c0cd8f6ed3.tar.bz2 | |
clarify in/not in in case of infinite iterators; thanks to Sergey Skovorodkin from docs@
| -rw-r--r-- | Doc/howto/functional.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Doc/howto/functional.rst b/Doc/howto/functional.rst index 8934d5e..f1ed07b 100644 --- a/Doc/howto/functional.rst +++ b/Doc/howto/functional.rst @@ -246,9 +246,9 @@ Built-in functions such as :func:`max` and :func:`min` can take a single iterator argument and will return the largest or smallest element. The ``"in"`` and ``"not in"`` operators also support iterators: ``X in iterator`` is true if X is found in the stream returned by the iterator. You'll run into obvious -problems if the iterator is infinite; ``max()``, ``min()``, and ``"not in"`` +problems if the iterator is infinite; ``max()``, ``min()`` will never return, and if the element X never appears in the stream, the -``"in"`` operator won't return either. +``"in"`` and ``"not in"`` operators won't return either. Note that you can only go forward in an iterator; there's no way to get the previous element, reset the iterator, or make a copy of it. Iterator objects |