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| author | Raymond Hettinger <python@rcn.com> | 2003-06-25 19:03:22 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2003-06-25 19:03:22 (GMT) |
| commit | 2dd8c426382d620cb5aa20cf75584a174a9aacb8 (patch) | |
| tree | 407f81c06b324dd984d98bc5bb34a6ee8cd2b580 | |
| parent | 03ec6d538af8c0f0fc49b300b0d48b98704d8f9b (diff) | |
| download | cpython-2dd8c426382d620cb5aa20cf75584a174a9aacb8.zip cpython-2dd8c426382d620cb5aa20cf75584a174a9aacb8.tar.gz cpython-2dd8c426382d620cb5aa20cf75584a174a9aacb8.tar.bz2 | |
SF bug #696777: How to make a class iterable using a member generator.
* Added a note that a container class can implement the iterator protocol
by defining its __iter__() method as a generator.
| -rw-r--r-- | Doc/lib/libstdtypes.tex | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/lib/libstdtypes.tex b/Doc/lib/libstdtypes.tex index 4c1dcbd..2b64d89 100644 --- a/Doc/lib/libstdtypes.tex +++ b/Doc/lib/libstdtypes.tex @@ -395,6 +395,12 @@ do not obey this property are deemed broken. (This constraint was added in Python 2.3; in Python 2.2, various iterators are broken according to this rule.) +Python's generators provide a convenient way to implement the +iterator protocol. If a container object's \method{__iter__()} +method is implemented as a generator, it will automatically +return an iterator object (technically, a generator object) +supplying the \method{__iter__()} and \method{next()} methods. + \subsection{Sequence Types \label{typesseq}} |