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Part of SF patch #1513870 (the still relevant part) -- add reduce() to

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functools, and adjust docs etc.
This commit is contained in:
Guido van Rossum 2006-08-26 20:49:04 +00:00
parent 6a2a2a0832
commit 0919a1a07b
11 changed files with 168 additions and 78 deletions
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7
Misc/cheatsheet
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@ -901,7 +901,7 @@ lambda [param_list]: returnedExpr
-- Creates an anonymous function. returnedExpr must be
an expression, not a statement (e.g., not "if xx:...",
"print xxx", etc.) and thus can't contain newlines.
Used mostly for filter(), map(), reduce() functions, and GUI callbacks..
Used mostly for filter(), map() functions, and GUI callbacks..
List comprehensions
result = [expression for item1 in sequence1 [if condition1]
[for item2 in sequence2 ... for itemN in sequenceN]
@ -1005,11 +1005,6 @@ property() Created a property with access controlled by functions.
range(start [,end Returns list of ints from >= start and < end.With 1 arg,
[, step]]) list from 0..arg-1With 2 args, list from start..end-1With 3
args, list from start up to end by step
reduce(f, list [, Applies the binary function f to the items oflist so as to
init]) reduce the list to a single value.If init given, it is
"prepended" to list.
Re-parses and re-initializes an already imported module.
Useful in interactive mode, if you want to reload amodule
reload(module) after fixing it. If module was syntacticallycorrect but had
an error in initialization, mustimport it one more time
before calling reload().