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171 Commits

Author SHA1 Message Date
Raymond Hettinger b2d4b3d415 Issue #28991: Address comment that the __len__ call looked unattractive 2016-12-16 14:59:37 -08:00
Raymond Hettinger c28dbd0452 merge 2016-12-16 13:59:32 -08:00
Raymond Hettinger af56e0e70f Issue #28991: Fix obscure reentrancy bug in functools.lru_cache(). 2016-12-16 13:57:40 -08:00
Nick Coghlan 457fc9a69e Issue #27137: align Python & C implementations of functools.partial 
The pure Python fallback implementation of functools.partial
now matches the behaviour of its accelerated C counterpart for
subclassing, pickling and text representation purposes.

Patch by Emanuel Barry and Serhiy Storchaka.
 2016-09-10 20:00:02 +10:00
Serhiy Storchaka ce2295def3 Removed redundant call of update_wrapper(). 2015-10-24 09:51:53 +03:00
Yury Selivanov 77a8cd65be Issue #23572: Fixed functools.singledispatch on classes with falsy metaclasses. 
Patch by Ethan Furman.
 2015-08-18 14:20:00 -04:00
Serhiy Storchaka 46c5611948 Backed out changeset: b0a0b9b59012 2015-05-24 21:53:49 +03:00
Larry Hastings 8252cc9832 Backed out changeset 57776eee74f2 2015-05-23 14:56:23 -07:00
Serhiy Storchaka 1c858c352b Issue #14373: Added C implementation of functools.lru_cache(). Based on 
patches by Matt Joiner and Alexey Kachayev.
 2015-05-23 22:42:49 +03:00
Serhiy Storchaka ba9ac5b5c4 Issue #16261: Converted some bare except statements to except statements 
with specified exception type.  Original patch by Ramchandra Apte.
 2015-05-20 10:33:40 +03:00
Raymond Hettinger ffcd8490d0 Reduce the overhead in functools.total_ordering by localizing NotImplemented. 
(Sugguested by Serhiy Storchaka)
 2015-05-12 21:26:37 -07:00
Alexander Belopolsky e49af34151 Issue #7830: Flatten nested functools.partial. 2015-03-01 15:08:17 -05:00
Serhiy Storchaka 08448a1f4d Issue #23326: Removed __ne__ implementations. Since fixing default __ne__ 
implementation in issue #21408 they are redundant.
 2015-01-31 12:05:05 +02:00
Raymond Hettinger 1a8ada89f9 No need to rebuild a constant dictionary on every call. Move convert mapping to module level. 2015-01-13 22:57:35 -08:00
Raymond Hettinger e5db863c22 Minor speed-up. Use local variable instead of a global lookup. 2015-01-06 22:16:10 -08:00
Raymond Hettinger 57a3786a62 merge 2015-01-05 22:00:08 -08:00
Raymond Hettinger 0603d3049e Issue #23132: Mitigate regression in speed and clarity in functools.total_ordering. 2015-01-05 21:52:10 -08:00
Serhiy Storchaka 697a526fa1 Issue #23132: Improve performance and introspection support of comparison 
methods created by functool.total_ordering.
 2015-01-01 15:23:12 +02:00
Raymond Hettinger 92c7b90148 merge 2014-08-12 12:45:28 -07:00
Raymond Hettinger 4d58897fdb Issue 22184: Early detection and reporting of missing lru_cache parameters 2014-08-12 12:44:52 -07:00
Serhiy Storchaka 521e5860a5 Issue #22032: __qualname__ instead of __name__ is now always used to format 
fully qualified class names of Python implemented classes.
 2014-07-22 15:00:37 +03:00
Victor Stinner 7fa767e517 Issue #20976: pyflakes: Remove unused imports 2014-03-20 09:16:38 +01:00
Yury Selivanov da5fe4f2da inspect.signature: Add support for 'functools.partialmethod' #20223 2014-01-27 17:28:37 -05:00
Nick Coghlan 3daaf5f89d Fix functools.partialmethod docs and __all__ 2013-11-04 23:32:16 +10:00
Nick Coghlan f4cb48a72b Issue #4331: Added functools.partialmethod 
Initial patch by Alon Horev
 2013-11-03 16:41:46 +10:00
Nick Coghlan f05d981f58 Close #10042: functools.total_ordering now handles NotImplemented 
(Patch by Katie Miller)
 2013-10-02 00:02:03 +10:00
Nick Coghlan 24c05bc154 Close issue 17482: don't overwrite __wrapped__ 2013-07-15 21:13:08 +10:00
Brett Cannon cd171c8e92 Issue #18200: Back out usage of ModuleNotFoundError (8d28d44f3a9a) 2013-07-04 17:43:24 -04:00
Łukasz Langa 3720c77e30 Issue #18244: Adopt C3-based linearization in functools.singledispatch for improved ABC support 2013-07-01 16:00:38 +02:00
Brett Cannon 0a140668fa Issue #18200: Update the stdlib (except tests) to use 
ModuleNotFoundError.
 2013-06-13 20:57:26 -04:00
Łukasz Langa 6f69251980 Add reference implementation for PEP 443 
PEP accepted: http://mail.python.org/pipermail/python-dev/2013-June/126734.html
 2013-06-05 12:20:24 +02:00
Raymond Hettinger 36fe22806c merge 2013-03-08 23:04:47 -08:00
Raymond Hettinger d8d6010df3 Sync-up with 3.4 to make maintenance easier. 2013-03-08 23:01:07 -08:00
Raymond Hettinger a28c55a2e4 merge 2013-03-08 21:14:46 -07:00
Raymond Hettinger f96b2b03bb Improve comments and variable names. 2013-03-08 21:11:55 -07:00
Raymond Hettinger bb5f48008d Merge 2013-03-04 04:20:46 -05:00
Raymond Hettinger 352cc8cfc3 Another nit. 2013-03-04 04:19:09 -05:00
Raymond Hettinger 32e2ff5dc5 merge 2013-03-04 03:54:45 -05:00
Raymond Hettinger f2c17a9276 Fix other re-entrancy nits for the lru_cache. 
Keep references for oldkey and oldvalue so they can't
trigger a __del__ method to reenter our thread.

Move the cache[key]=link step to the end, after the link
data is in a consistent state.

Under exotic circumstances, the cache[key]=link step could
trigger reentrancy (i.e. the key would have to have a hash
exactly equal to that for another key in the cache and the
key would need a __eq__ method that makes a reentrant call
our cached function).
 2013-03-04 03:34:09 -05:00
Raymond Hettinger 794568f0ad Merge 2013-03-01 23:21:00 -08:00
Raymond Hettinger 409f663091 Remove dependency on dummy_threading (to solve a bootstrap problem). 2013-03-01 23:20:13 -08:00
Raymond Hettinger dacb6858e8 Merge 2013-03-01 03:48:30 -08:00
Raymond Hettinger fd54117a68 Don't deadlock on a reentrant call. 2013-03-01 03:47:57 -08:00
Raymond Hettinger 832eddeafb Eliminate unnecessary variable. 2013-02-17 00:08:45 -08:00
Antoine Pitrou b5b3714168 Issue #12428: Add a pure Python implementation of functools.partial(). 
Patch by Brian Thorne.
 2012-11-13 21:35:40 +01:00
Raymond Hettinger 0c9050c25d Separate key creation logic from the sequence class that memoizes its hash value. 2012-06-04 00:21:14 -07:00
Raymond Hettinger 010ce3283a Minor change to default lru size. Set default to a power of two. 2012-05-19 21:20:48 -07:00
Raymond Hettinger 9acbb6074f Move make_key() out of the decorator body. Make keys that only need to be hashed once. 2012-04-30 22:32:16 -07:00
Raymond Hettinger 018b4fbb9b Use a flag to indicate when the circular queue is fully populated and stable. 2012-04-30 20:48:55 -07:00
Raymond Hettinger 34d94a2101 Handle a possible race condition 2012-04-30 14:14:28 -07:00
Raymond Hettinger b6b98c093e Track the cache size directly. 2012-04-29 18:09:02 -07:00
Raymond Hettinger 9f0ab9f564 Factor out shared variables. 2012-04-29 14:55:27 -07:00
Raymond Hettinger 678e7f3be6 Flatten the lru cache keyword args tuple for better memory utilization. 2012-04-29 12:28:02 -07:00
Raymond Hettinger c6897854f8 Fix-up a comment 2012-03-31 02:19:06 -07:00
Raymond Hettinger 7f7a5a7b87 Fix-up comments and add a sentinel variable for clarity. 2012-03-30 21:50:40 -07:00
Raymond Hettinger 41eb79a016 No need to create and destroy links when updating a fixed-sized circular queue. 2012-03-30 19:15:18 -07:00
Raymond Hettinger 1ff50df8bc Minor cleanup: add whitespace, add comments, bring function attribute updates together. 2012-03-30 13:15:48 -07:00
Raymond Hettinger 7dabfede34 Fix whitespace 2012-03-17 15:11:09 -07:00
Raymond Hettinger 7e0c581c49 Low overhead path for maxsize==0 2012-03-17 15:10:24 -07:00
Raymond Hettinger bc8e81dcc3 Section-off the source for better readability. 2012-03-17 00:24:09 -07:00
Raymond Hettinger dce583e0bd Minor beautification. 2012-03-16 22:12:20 -07:00
Raymond Hettinger 4f5139ba20 Root variable is not changed. 2012-03-16 17:08:37 -07:00
Raymond Hettinger 202d1ad3f6 Fix whitespace 2012-03-16 17:05:17 -07:00
Raymond Hettinger d37fb55910 Unique sentinel value for cache.get() 2012-03-16 17:04:11 -07:00
Raymond Hettinger 6e8c817687 Refactor calculation of the cache key. Minor code cleanups. 2012-03-16 16:53:05 -07:00
Benjamin Peterson 29a837d857 merge heads 2012-03-16 18:22:53 -05:00
Benjamin Peterson 954cf578c7 clear the root with the cache 2012-03-16 18:22:26 -05:00
Raymond Hettinger d656958915 Minor code cleanup. 2012-03-16 11:48:12 -07:00
Raymond Hettinger 57b2959d26 Eliminate duplicate link lookup. Minor cleanup. 2012-03-16 11:21:39 -07:00
Raymond Hettinger ec0e91045e Improve the memory utilization (and speed) of functools.lru_cache(). 2012-03-16 01:16:31 -07:00
Meador Inge ff7f64ca0e Issue #13544: Add __qualname__ to functools.WRAPPER_ASSIGNMENTS. 
Patch by Filip Gruszczyński.
 2011-12-11 22:37:31 -06:00
Raymond Hettinger cd9fdfd652 Issue 13227: Option to make the lru_cache() type specific (suggested by Andrew Koenig). 2011-10-20 08:57:45 -07:00
Raymond Hettinger d8886fc831 Merge 2011-10-16 00:00:51 -07:00
Raymond Hettinger 4b779b3785 Issue 13177: Make tracebacks more readable by avoiding chained exceptions in the lru_cache. 2011-10-15 23:50:42 -07:00
Raymond Hettinger 8cd2e5f751 Sync-up minor code edits with the default branch. 2011-05-05 14:15:12 -07:00
Raymond Hettinger e7a2430dde Fix __hash__ in functools.cmp_to_key() to work with collections.Hashable. 2011-05-03 11:16:36 -07:00
Raymond Hettinger 003be52932 Fix __hash__ in functools.cmp_to_key() to work with collections.Hashable. 2011-05-03 11:01:32 -07:00
Raymond Hettinger 7ab9e22e34 Issue #11707: Fast C version of functools.cmp_to_key() 2011-04-05 02:33:54 -07:00
Raymond Hettinger 0a4edd5435 Issue #11628: cmp_to_key should use __slots__. 2011-03-21 17:54:04 -07:00
Raymond Hettinger a0d1d96771 Issue #11628: cmp_to_key should use __slots__. 2011-03-21 17:50:28 -07:00
Raymond Hettinger 7e4c168385 Minor optimization -- factor a constant expression out of the inner-loop. 2011-03-18 15:09:10 -07:00
Raymond Hettinger 524359f9f7 Add comment. 2011-01-11 22:08:55 +00:00
Raymond Hettinger 23f9fc3448 Issue #10042: Fixed the total_ordering decorator to handle cross-type 
comparisons that could lead to infinite recursion.
 2011-01-08 07:01:56 +00:00
Raymond Hettinger c79fb0e52d Issue 10593: Adopt Nick's suggestion for an lru_cache with maxsize=None. 2010-12-01 03:45:41 +00:00
Raymond Hettinger 00f2f97dbd Doc and docstring nits. 2010-12-01 00:47:56 +00:00
Raymond Hettinger 7496b4171e Add example, tighten text, and minor clean-ups. 2010-11-30 19:15:45 +00:00
Raymond Hettinger 5e20bab422 Neaten-up a bit. 2010-11-30 07:13:04 +00:00
Nick Coghlan 234515afe5 Issue 10586: change the new functools.lru_cache implementation to expose the maximum and current cache sizes through the public statistics API. This API is now a single function that returns a named tuple. 2010-11-30 06:19:46 +00:00
Raymond Hettinger 5fa40c01ad Clean-up docstring, comments, and whitespace. 2010-11-25 08:11:57 +00:00
Raymond Hettinger 3255c63e28 Improve comment 2010-09-16 00:31:21 +00:00
Raymond Hettinger 1006bd459b Future proof total_ordering against changes in methods defined on object. 2010-09-14 22:55:13 +00:00
Raymond Hettinger bd88802c1f Revert r84700 which had an unfortunate performance cost. 2010-09-11 08:07:42 +00:00
Raymond Hettinger 22b46e0ba9 Separate positional arguments from localized globals. 2010-09-11 00:05:44 +00:00
Benjamin Peterson 1017ae5253 add reduce and partial to __all__ 2010-09-10 23:35:52 +00:00
Raymond Hettinger f45abc97bf Add method to OrderedDict for repositioning keys to the ends. 2010-09-06 21:26:09 +00:00
Raymond Hettinger 4c7c9af542 Clean-up functools.total_ordering(). 2010-09-05 05:57:35 +00:00
Raymond Hettinger 02566ec89f Adopt more descriptive attribute names as suggested on python-dev. 2010-09-04 22:46:06 +00:00
Raymond Hettinger af1e140334 Readability nit. 2010-09-02 19:58:35 +00:00
Raymond Hettinger 7babc1b6a5 Better method name. Tighten inner-loop with bound methods. 2010-09-02 19:56:28 +00:00
Raymond Hettinger 38d17e3df0 Speed-up cache updates 2010-09-02 09:44:28 +00:00