B x\\@sddlZejddkZer(ddlmZn ddlmZyddlmZWn ek rdddl mZYnXd ddZ Gdd d eZ dS) N)MutableMapping) get_ident...csfdd}|S)zGDecorator to make a repr function return fillvalue for a recursive callcs>tfdd}td|_td|_td|_|S)Nc sBt|tf}|krS|z |}Wd|X|S)N)idradddiscard)selfkeyresult) fillvalue repr_running user_function:lib/python3.7/site-packages/pandas/compat/chainmap_impl.pywrappers   z.decorating_function..wrapper __module____doc____name__)setgetattrrrr)rr)r )r rrdecorating_functions    z+recursive_repr..decorating_functionr)r rr)r rrecursive_reprs rc@seZdZdZddZddZddZd'd d Zd d Zd dZ ddZ ddZ e ddZ eddZddZeZd(ddZeddZddZdd Zd!d"Zd#d$Zd%d&ZdS))ChainMapa A ChainMap groups multiple dicts (or other mappings) together to create a single, updatable view. The underlying mappings are stored in a list. That list is public and can be accessed / updated using the *maps* attribute. There is no other state. Lookups search the underlying mappings successively until a key is found. In contrast, writes, updates, and deletions only operate on the first mapping. cGst|p ig|_dS)zInitialize a ChainMap by setting *maps* to the given mappings. If no mappings are provided, a single empty dictionary is used. N)listmaps)r rrrr__init__7szChainMap.__init__cCs t|dS)N)KeyError)r r rrr __missing__>szChainMap.__missing__c Cs8x,|jD]"}y||Stk r(YqXqW||S)N)rrr)r r mappingrrr __getitem__As   zChainMap.__getitem__NcCs||kr||S|S)Nr)r r defaultrrrgetKsz ChainMap.getcCsttj|jS)N)lenrunionr)r rrr__len__NszChainMap.__len__cCsttj|jS)N)iterrr$r)r rrr__iter__RszChainMap.__iter__cstfdd|jDS)Nc3s|]}|kVqdS)Nr).0m)r rr Vsz(ChainMap.__contains__..)anyr)r r r)r r __contains__UszChainMap.__contains__cCs t|jS)N)r+r)r rrr__bool__XszChainMap.__bool__cCsd|ddd|jDS)Nz{0.__class__.__name__}({1})z, css|]}t|VqdS)N)repr)r(r)rrrr*^sz$ChainMap.__repr__..)formatjoinr)r rrr__repr__[szChainMap.__repr__cGs|tj|f|S)z?Create a ChainMap with a single dict created from the iterable.)dictfromkeys)clsiterableargsrrrr3`szChainMap.fromkeyscCs$|j|jdf|jddS)zb New ChainMap or subclass with a new copy of maps[0] and refs to maps[1:] rN) __class__rcopy)r rrrr9esz ChainMap.copycCs|dkr i}|j|f|jS)z New ChainMap with a new map followed by all previous maps. If no map is provided, an empty dict is used. N)r8r)r r)rrr new_childnszChainMap.new_childcCs|j|jddS)zNew ChainMap from maps[1:].r7N)r8r)r rrrparentswszChainMap.parentscCs||jd|<dS)Nr)r)r r valuerrr __setitem__|szChainMap.__setitem__cCs8y|jd|=Wn"tk r2td|YnXdS)Nrz(Key not found in the first mapping: {!r})rrr/)r r rrr __delitem__s zChainMap.__delitem__cCs0y|jdStk r*tdYnXdS)zj Remove and return an item pair from maps[0]. Raise KeyError is maps[0] is empty. rz#No keys found in the first mapping.N)rpopitemr)r rrrr?szChainMap.popitemcGs>y|jdj|f|Stk r8td|YnXdS)zq Remove *key* from maps[0] and return its value. Raise KeyError if *key* not in maps[0]. rz(Key not found in the first mapping: {!r}N)rpoprr/)r r r6rrrr@s z ChainMap.popcCs|jddS)z'Clear maps[0], leaving maps[1:] intact.rN)rclear)r rrrrAszChainMap.clear)N)N)rr __qualname__rrrr r"r%r'r,r-rr1 classmethodr3r9__copy__r:propertyr;r=r>r?r@rArrrrr*s(      r)r) sys version_infoZPY3Zcollections.abcr collectionsZthreadr ImportError_threadrrrrrrs