ó ¡¼™\c@ sCdZddlmZmZddlmZdefd„ƒYZeƒZ e j Z e j Z ddl m Z ddlmZy¬ddlZdd lmZeed ƒsÁed eƒe‚neejƒd krøed jejƒeƒe‚nddlZejƒdkre‚nejZ Wnek rEd„Zn Xd„Zd„Zd„Zdd„Zeddƒj ƒZ!eddƒZ"e"j ƒdkr¬dZ#n8ye$e"ƒZ#Wn%e%k rãe&dde#ƒ‚nXe!dkrùeZ'nFe!dkree#ƒZ'n+e!dkr/ee#ƒZ'ne&de!ƒ‚dS(s Caching facility for SymPy iÿÿÿÿ(tprint_functiontdivision(t LooseVersiont_cachecB s eZdZd„Zd„ZRS(s List of cached functions cC suxn|D]f}|j}|}xAt|dƒrYt|dƒrM|jƒ}Pq|j}qWd}t||ƒqWdS(sprint cache infot __wrapped__t cache_infoN(t__name__thasattrRRtNonetprint(tselftitemtnametmyfunctinfo((s/lib/python2.7/site-packages/sympy/core/cache.pyt print_cache s    cC sWxP|D]H}|}x9t|dƒrNt|dƒrB|jƒPq|j}qWqWdS(sclear cache contentRt cache_clearN(RRR(R R R ((s/lib/python2.7/site-packages/sympy/core/cache.pyt clear_caches  (Rt __module__t__doc__RR(((s/lib/python2.7/site-packages/sympy/core/cache.pyRs (t lru_cache(tupdate_wrapperN(twarnt __version__s#fastcache version >= 0.4.0 requireds0.4.0s0fastcache version >= 0.4.0 required, detected {}tPyPyc s‡fd†}|S(scaching decorator. important: the result of cached function must be *immutable* Examples ======== >>> from sympy.core.cache import cacheit >>> @cacheit ... def f(a, b): ... return a+b >>> @cacheit ... def f(a, b): ... return [a, b] # <-- WRONG, returns mutable object to force cacheit to check returned results mutability and consistency, set environment variable SYMPY_USE_CACHE to 'debug' c sltˆdtƒˆƒ‰‡‡fd†}ˆj|_ˆj|_t|ˆƒˆj|_tj|ƒ|S(Nttypedc s:yˆ||Ž}Wn tk r5ˆ||Ž}nX|S(N(t TypeError(targstkwargstretval(tcfunctfunc(s/lib/python2.7/site-packages/sympy/core/cache.pytwrapper\s  (RtTrueRRRRtCACHEtappend(RR (tmaxsize(RRs/lib/python2.7/site-packages/sympy/core/cache.pyt func_wrapperWs     ((R$R%((R$s/lib/python2.7/site-packages/sympy/core/cache.pyt __cacheitBsc s‡fd†}|S(scaching decorator. important: the result of cached function must be *immutable* Examples ======== >>> from sympy.core.cache import cacheit >>> @cacheit ... def f(a, b): ... return a+b >>> @cacheit ... def f(a, b): ... return [a, b] # <-- WRONG, returns mutable object to force cacheit to check returned results mutability and consistency, set environment variable SYMPY_USE_CACHE to 'debug' c s2tjˆdtddƒ|ƒ}tj|ƒ|S(NRt unhashabletignore(t fastcachet clru_cacheR!R"R#(RR(R$(s/lib/python2.7/site-packages/sympy/core/cache.pyR%‰s! ((R$R%((R$s/lib/python2.7/site-packages/sympy/core/cache.pyR&tscC s|S(N((R((s/lib/python2.7/site-packages/sympy/core/cache.pyt__cacheit_nocache“sc s‡fd†}|S(s)cacheit + code to check cache consistencyc sDddlm}tˆƒˆƒ‰|ˆƒ‡‡fd†ƒ}|S(Ni(twrapsc sSˆ||Ž}ˆ||Ž}t|ƒt|ƒf||krOtdƒ‚n|S(Ns Returned values are not the same(thasht RuntimeError(Rtkw_argstr1tr2(RR(s/lib/python2.7/site-packages/sympy/core/cache.pyR žs   (t decoratorsR,R&(RR,R (R$(RRs/lib/python2.7/site-packages/sympy/core/cache.pyR%™s((R$R%((R$s/lib/python2.7/site-packages/sympy/core/cache.pyt__cacheit_debug—scC sddlm}|||ƒS(Niÿÿÿÿ(tgetenv(tosR4(tkeytdefaultR4((s/lib/python2.7/site-packages/sympy/core/cache.pyt_getenv·stSYMPY_USE_CACHEtyestSYMPY_CACHE_SIZEt1000tnones2SYMPY_CACHE_SIZE must be a valid integer or None. sGot: %stnotdebugs*unrecognized value for SYMPY_USE_CACHE: %s((Rt __future__RRtdistutils.versionRtVtlistRR"RRtsympy.core.compatibilityRt functoolsRR)twarningsRRt UserWarningt ImportErrorRtformattplatformtpython_implementationR*R&R+R3RR8tlowert USE_CACHEtscsR;tintt ValueErrorR.tcacheit(((s/lib/python2.7/site-packages/sympy/core/cache.pyts\             2