Mercurial > cpython-lru_cache-weakref
view Modules/ar_beos @ 87690:66c1c9f32567 default tip
Add use_weakref option to functools.lru_cache
The use_weakref option makes lru_cache create weak references to the function
arguments when creating the cache key, which prevents them from staying in the
memory forever even after all other references to them are gone.
This is a proof of concept for http://bugs.python.org/issue19859
| author | Radomir Dopieralski <devel@sheep.art.pl> |
|---|---|
| date | Tue, 03 Dec 2013 16:02:48 +0100 |
| parents | 4e2d1c6f2904 |
| children |
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#!/bin/sh # # Truly fake ar, using a directory to store object files. # # Donn Cave, donn@oz.net usage='Usage: ar-fake cr libpython.dir obj.o ... ar-fake d libpython.dir obj.o ... ar-fake so libpython.dir libpython.so' case $# in 0|1|2) echo "$usage" >&2 exit 1 ;; esac command=$1 library=$2 shift 2 case $command in cr) if test -d $library then : else mkdir $library fi if cp -p $* $library then # To force directory modify date, create or delete a file. if test -e $library/.tch then rm $library/.tch else echo tch > $library/.tch fi exit 0 fi ;; d) if test -d $library then cd $library rm -f $* fi ;; so) case $BE_HOST_CPU in ppc) # In case your libpython.a refers to any exotic libraries, # mwld needs to know that here. The following hack makes # a couple of assumptions about Modules/Makefile. If it # doesn't work, you may as well add the necessary libraries # here explicitly instead. extralibs=$( (cd Modules; make -f Makefile -n link) | sed -n 's/.*\.so \(.*\) -o python.*/\1/p' ) mwld -xms -export pragma -nodup -o $1 $library/* $extralibs ;; x86) ld -shared -soname $(basename $1) -o $1 $library/* ;; esac status=$? cd $(dirname $1) ln -sf $PWD lib exit $status ;; *) echo "$usage" >&2 exit 1 ;; esac
