[Python-checkins] r70559 - python/branches/py3k/Doc/library/itertools.rst
raymond.hettinger
python-checkins at python.org
Mon Mar 23 23:42:28 CET 2009
Author: raymond.hettinger
Date: Mon Mar 23 23:42:28 2009
New Revision: 70559
Log:
For some reason rst docs like an initial 3 space indent.
Modified:
python/branches/py3k/Doc/library/itertools.rst
Modified: python/branches/py3k/Doc/library/itertools.rst
==============================================================================
--- python/branches/py3k/Doc/library/itertools.rst (original)
+++ python/branches/py3k/Doc/library/itertools.rst Mon Mar 23 23:42:28 2009
@@ -683,26 +683,26 @@
s = list(iterable)
return chain.from_iterable(combinations(s, r) for r in range(len(s)+1))
- def unique_everseen(iterable, key=None):
- "List unique elements, preserving order. Remember all elements ever seen."
- # unique_everseen('AAAABBBCCDAABBB') --> A B C D
- # unique_everseen('ABBCcAD', str.lower) --> A B C D
- seen = set()
- seen_add = seen.add
- if key is None:
- for element in iterable:
- if element not in seen:
- seen_add(element)
- yield element
- else:
- for element in iterable:
- k = key(element)
- if k not in seen:
- seen_add(k)
- yield element
+ def unique_everseen(iterable, key=None):
+ "List unique elements, preserving order. Remember all elements ever seen."
+ # unique_everseen('AAAABBBCCDAABBB') --> A B C D
+ # unique_everseen('ABBCcAD', str.lower) --> A B C D
+ seen = set()
+ seen_add = seen.add
+ if key is None:
+ for element in iterable:
+ if element not in seen:
+ seen_add(element)
+ yield element
+ else:
+ for element in iterable:
+ k = key(element)
+ if k not in seen:
+ seen_add(k)
+ yield element
- def unique_justseen(iterable, key=None):
- "List unique elements, preserving order. Remember only the element just seen."
- # unique_justseen('AAAABBBCCDAABBB') --> A B C D A B
- # unique_justseen('ABBCcAD', str.lower) --> A B C A D
- return map(next, map(itemgetter(1), groupby(iterable, key)))
+ def unique_justseen(iterable, key=None):
+ "List unique elements, preserving order. Remember only the element just seen."
+ # unique_justseen('AAAABBBCCDAABBB') --> A B C D A B
+ # unique_justseen('ABBCcAD', str.lower) --> A B C A D
+ return map(next, map(itemgetter(1), groupby(iterable, key)))
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