ó •‰]c@@sLddlmZddlZdefd„ƒYZdefd„ƒYZdS(i(tabsolute_importNt SingletoncB@s eZdZd„Zd„ZRS(s› Singleton metaclass Based on Python Cookbook 3rd Edition Recipe 9.13 Only one instance of a class can exist. Does not work with __slots__ cO@s&tt|ƒj||Žd|_dS(N(tsuperRt__init__tNonet_Singleton__instance(tselftargstkw((s8lib/python2.7/site-packages/openpyxl/compat/singleton.pyRscO@s7|jdkr0tt|ƒj||Ž|_n|jS(N(RRRRt__call__(RRR((s8lib/python2.7/site-packages/openpyxl/compat/singleton.pyR s!(t__name__t __module__t__doc__RR (((s8lib/python2.7/site-packages/openpyxl/compat/singleton.pyRs tCachedcB@s eZdZd„Zd„ZRS(s™ Caching metaclass Child classes will only create new instances of themselves if one doesn't already exist. Does not work with __slots__ cO@s,tt|ƒj||Žtjƒ|_dS(N(RRRtweakreftWeakValueDictionaryt_Cached__cache(RRR((s8lib/python2.7/site-packages/openpyxl/compat/singleton.pyRscG@sC||jkr|j|Stt|ƒj|Œ}||j|<|S(N(RRRR (RRtobj((s8lib/python2.7/site-packages/openpyxl/compat/singleton.pyR #s   (R R R RR (((s8lib/python2.7/site-packages/openpyxl/compat/singleton.pyR s (t __future__RRttypeRR (((s8lib/python2.7/site-packages/openpyxl/compat/singleton.pyts