Mercurial > cpython-lru_cache-weakref
view PC/make_versioninfo.c @ 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 | fd25030223b0 |
| children |
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#include <stdio.h> #include "patchlevel.h" /* * This program prints out an include file containing fields required to build * the version info resource of pythonxx.dll because the resource compiler * cannot do the arithmetic. */ /* * FIELD3 is the third field of the version number. * This is what we'd like FIELD3 to be: * * #define FIELD3 (PY_MICRO_VERSION*1000 + PY_RELEASE_LEVEL*10 + PY_RELEASE_SERIAL) * * but that neither gives an error nor comes anywhere close to working. * * For 2.4a0, * PY_MICRO_VERSION = 0 * PY_RELEASE_LEVEL = 'alpha' = 0xa * PY_RELEASE_SERIAL = 0 * * gives FIELD3 = 0*1000 + 10*10 + 0 = 100 */ int main(int argc, char **argv) { printf("/* This file created by make_versioninfo.exe */\n"); printf("#define FIELD3 %d\n", PY_MICRO_VERSION*1000 + PY_RELEASE_LEVEL*10 + PY_RELEASE_SERIAL); printf("#define MS_DLL_ID \"%d.%d\"\n", PY_MAJOR_VERSION, PY_MINOR_VERSION); printf("#ifndef _DEBUG\n"); printf("#define PYTHON_DLL_NAME \"python%d%d.dll\"\n", PY_MAJOR_VERSION, PY_MINOR_VERSION); printf("#else\n"); printf("#define PYTHON_DLL_NAME \"python%d%d_d.dll\"\n", PY_MAJOR_VERSION, PY_MINOR_VERSION); printf("#endif\n"); return 0; }
