U Ïøïc ã@s’dZddlmZddlmZddlmZddlmZddl m Z ddl m Z ddl mZmZmZd d d œd d „Zd dœdd„Zdd„Zdd„ZdS)z; Boilerplate functions used in defining binary operations. é)Ú annotations)Úwraps)ÚCallable)Úitem_from_zerodim)Úis_matching_na)ÚF)Ú ABCDataFrameÚABCIndexÚ ABCSeriesÚstrzCallable[[F], F])ÚnameÚreturncsdddœ‡fdd„ }|S)z§ Boilerplate for pandas conventions in arithmetic and comparison methods. Parameters ---------- name : str Returns ------- decorator r)Úmethodr cs t|ˆƒS©N)Ú_unpack_zerodim_and_defer)r©r ©ú:/tmp/pip-unpacked-wheel-g7fro6k3/pandas/core/ops/common.pyÚwrapper!sz)unpack_zerodim_and_defer..wrapperr)r rrrrÚunpack_zerodim_and_defers rrcs(| d¡dk‰tˆƒ‡‡fdd„ƒ}|S)aM Boilerplate for pandas conventions in arithmetic and comparison methods. Ensure method returns NotImplemented when operating against "senior" classes. Ensure zero-dimensional ndarrays are always unpacked. Parameters ---------- method : binary method name : str Returns ------- method Ú__>ÚleÚltÚneÚgtÚeqÚgecs\ˆrt|tƒrt|tƒrn0tttfD]$}t||ƒr6qJt||ƒr$tSq$t|ƒ}ˆ||ƒSr)Ú isinstancer r rÚNotImplementedr)ÚselfÚotherÚcls©Zis_cmprrrÚ new_method9s   z-_unpack_zerodim_and_defer..new_method)Ústripr)rr r#rr"rr'srcCs$t|ttfƒrt||ƒ}n|j}|S)a Find the appropriate name to pin to an operation result. This result should always be either an Index or a Series. Parameters ---------- left : {Series, Index} right : object Returns ------- name : object Usually a string )rr r Ú_maybe_match_namer )ÚleftÚrightr rrrÚget_op_result_nameMs r(cCs®t|dƒ}t|dƒ}|r–|r–z4|j|jkr2|jWSt|j|jƒrH|jWSWdSWqªtk r~t|j|jƒrx|jYSYdStk r’YdSXn|r |jS|rª|jSdS)a« Try to find a name to attach to the result of an operation between a and b. If only one of these has a `name` attribute, return that name. Otherwise return a consensus name if they match or None if they have different names. Parameters ---------- a : object b : object Returns ------- name : str or None See Also -------- pandas.core.common.consensus_name_attr r N)Úhasattrr rÚ TypeErrorÚ ValueError)ÚaÚbZa_hasZb_hasrrrr%cs(      r%N)Ú__doc__Ú __future__rÚ functoolsrÚtypingrZpandas._libs.librZpandas._libs.missingrZpandas._typingrZpandas.core.dtypes.genericrr r rrr(r%rrrrÚs      &