U fª/et ã@s„dZddlmZddlmZddlmZddlmZddl m Z m Z m Z e eegefdœdd „Ze d œd d „Zd d„Zdd„ZdS)z; Boilerplate functions used in defining binary operations. é)Úwraps)ÚCallable)Úitem_from_zerodim©ÚF)Ú ABCDataFrameÚABCIndexÚ ABCSeries)ÚnameÚreturncsttdœ‡fdd„ }|S)z§ Boilerplate for pandas conventions in arithmetic and comparison methods. Parameters ---------- name : str Returns ------- decorator )Úmethodr cs t|ˆƒS©N)Ú_unpack_zerodim_and_defer)r ©r ©ú:/tmp/pip-unpacked-wheel-tiezk1ph/pandas/core/ops/common.pyÚwrappersz)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__>ÚltÚgtÚeqÚleÚneÚgecs\ˆrt|tƒrt|tƒrn0tttfD]$}t||ƒr6qJt||ƒr$tSq$t|ƒ}ˆ||ƒSr )Ú isinstancerr rÚNotImplementedr)ÚselfÚotherÚcls©Zis_cmpr rrÚ new_method6s   z-_unpack_zerodim_and_defer..new_method)Ústripr)r r r!rr rr$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 rÚ_maybe_match_namer )ÚleftÚrightr rrrÚget_op_result_nameJs r&cCsLt|dƒ}t|dƒ}|r4|r4|j|jkr.|jSdSn|r>|jS|rH|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 )ÚaÚbZa_hasZb_hasrrrr#`s   r#N)Ú__doc__Ú functoolsrÚtypingrZpandas._libs.librZpandas._typingrZpandas.core.dtypes.genericrrr Ústrrrr&r#rrrrÚs    &