Mercurial > cpython-lru_cache-weakref

annotate Doc/lib/libcmpcache.tex @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents 376ee174ecd0
children
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84ab14d85763 New module documentation sections from Moshe Zadka <moshez@math.huji.ac.il>!
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1 \section{\module{cmpcache} ---
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2 Efficient file comparisons}
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3
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4 \declaremodule{standard}{cmpcache}
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d7864345b1c8 Update Moshe Zadka's email address to one works and might last a while.
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5 \sectionauthor{Moshe Zadka}{moshez@zadka.site.co.il}
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6 \modulesynopsis{Compare files very efficiently.}
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7
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8 \deprecated{1.6}{Use the \refmodule{filecmp} module instead.}
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9
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10 The \module{cmpcache} module provides an identical interface and similar
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11 functionality as the \refmodule{cmp} module, but can be a bit more efficient
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12 as it uses \function{statcache.stat()} instead of \function{os.stat()}
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13 (see the \refmodule{statcache} module for information on the
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14 difference).
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15
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16 \note{Using the \refmodule{statcache} module to provide
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17 \function{stat()} information results in trashing the cache
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18 invalidation mechanism: results are not as reliable. To ensure
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19 ``current'' results, use \function{cmp.cmp()} instead of the version
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20 defined in this module, or use \function{statcache.forget()} to
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21 invalidate the appropriate entries.}