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| author | Christian Heimes <christian@cheimes.de> | 2007-12-31 16:14:33 (GMT) |
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| committer | Christian Heimes <christian@cheimes.de> | 2007-12-31 16:14:33 (GMT) |
| commit | 5b5e81c637eb115b27b4c5c66cf1cf348c706162 (patch) | |
| tree | e83d0ce68e92750e40fbb901a0659bade6f41674 /Doc/library/itertools.rst | |
| parent | 862543aa85249b46649b60da96743b4b14c6c83b (diff) | |
| download | cpython-5b5e81c637eb115b27b4c5c66cf1cf348c706162.zip cpython-5b5e81c637eb115b27b4c5c66cf1cf348c706162.tar.gz cpython-5b5e81c637eb115b27b4c5c66cf1cf348c706162.tar.bz2 | |
Merged revisions 59605-59624 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r59606 | georg.brandl | 2007-12-29 11:57:00 +0100 (Sat, 29 Dec 2007) | 2 lines
Some cleanup in the docs.
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r59611 | martin.v.loewis | 2007-12-29 19:49:21 +0100 (Sat, 29 Dec 2007) | 2 lines
Bug #1699: Define _BSD_SOURCE only on OpenBSD.
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r59612 | raymond.hettinger | 2007-12-29 23:09:34 +0100 (Sat, 29 Dec 2007) | 1 line
Simpler documentation for itertools.tee(). Should be backported.
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r59613 | raymond.hettinger | 2007-12-29 23:16:24 +0100 (Sat, 29 Dec 2007) | 1 line
Improve docs for itertools.groupby(). The use of xrange(0) to create a unique object is less obvious than object().
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r59620 | christian.heimes | 2007-12-31 15:47:07 +0100 (Mon, 31 Dec 2007) | 3 lines
Added wininst-9.0.exe executable for VS 2008
Integrated bdist_wininst into PCBuild9 directory
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r59621 | christian.heimes | 2007-12-31 15:51:18 +0100 (Mon, 31 Dec 2007) | 1 line
Moved PCbuild directory to PC/VS7.1
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r59622 | christian.heimes | 2007-12-31 15:59:26 +0100 (Mon, 31 Dec 2007) | 1 line
Fix paths for build bot
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r59623 | christian.heimes | 2007-12-31 16:02:41 +0100 (Mon, 31 Dec 2007) | 1 line
Fix paths for build bot, part 2
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r59624 | christian.heimes | 2007-12-31 16:18:55 +0100 (Mon, 31 Dec 2007) | 1 line
Renamed PCBuild9 directory to PCBuild
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Diffstat (limited to 'Doc/library/itertools.rst')
| -rw-r--r-- | Doc/library/itertools.rst | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst index 54b52e4..21f6476 100644 --- a/Doc/library/itertools.rst +++ b/Doc/library/itertools.rst @@ -157,7 +157,7 @@ loops that truncate the stream. key = lambda x: x self.keyfunc = key self.it = iter(iterable) - self.tgtkey = self.currkey = self.currvalue = [] + self.tgtkey = self.currkey = self.currvalue = object() def __iter__(self): return self def __next__(self): @@ -350,14 +350,13 @@ loops that truncate the stream. is equivalent to:: def tee(iterable): - def gen(next, data={}, cnt=[0]): + def gen(next, data={}): for i in count(): - if i == cnt[0]: - item = data[i] = next() - cnt[0] += 1 + if i in data: + yield data.pop(i) else: - item = data.pop(i) - yield item + data[i] = next() + yield data[i] it = iter(iterable) return (gen(it.__next__), gen(it.__next__)) |