!h  UdZddlmZddlZddlmZddlmZddlm Z m Z ddl m Z m Z ddlmZerdd lmZee e zZddZGddejZGddeZGddeZeedZded<dS)z) Engine classes for :func:`~pandas.eval` ) annotationsN) TYPE_CHECKING)NumExprClobberingError) align_termsreconstruct_object)MATHOPS REDUCTIONS)printing)Exprexprr returnNonec|j}|tz}|r5dd|D}td|d|ddS)z Attempt to prevent foot-shooting in a helpful way. Parameters ---------- expr : Expr Terms can contain z, c,g|]}t|S)repr).0xs Yc:\xampp_lite_8_4\www\timesheet\venv\Lib\site-packages\pandas/core/computation/engines.py z+_check_ne_builtin_clash..)s0001tAww000zVariables in expression "z" overlap with builtins: ()N)names _ne_builtinsjoinr)r roverlapss r_check_ne_builtin_clashrso JEl"G II00000 1 1$ L L L L L L     rcfeZdZdZdZddZddZdd Zedd Z e j d Z d S)AbstractEnginez/Object serving as a base class for all engines.Fr rc0||_d|_d|_dSN)r aligned_axes result_type)selfr s r__init__zAbstractEngine.__init__4s  rstrc4tj|jS)zo Convert an expression for evaluation. Defaults to return the expression as a string. )r pprint_thingr r%s rconvertzAbstractEngine.convert9s $TY///robjectc|js&t|jj\|_|_|}t|j||j|jjjS)a* Run the engine on the expression. This method performs alignment which is necessary no matter what engine is being used, thus its implementation is in the base class. Returns ------- object The result of the passed expression. ) _is_alignedrr termsr$r# _evaluater return_type)r%ress revaluatezAbstractEngine.evaluateAse O2=dio2N2N /D d/nn!  c4#4dio6Q   rboolc&|jduo|jduSr")r#r$r*s rr.zAbstractEngine._is_alignedVs ,M1A1MMrcdS)a Return an evaluated expression. Parameters ---------- env : Scope The local and global environment in which to evaluate an expression. Notes ----- Must be implemented by subclasses. Nrr*s rr0zAbstractEngine._evaluateZsrNr r)r r')r r,)r r4) __name__ __module__ __qualname____doc__ has_neg_fracr&r+r3propertyr.abcabstractmethodr0rrrr r /s99L    0000    *NNNXN        rr ) metaclassceZdZdZdZdZdS) NumExprEnginezNumExpr engine classTcddl}|}|jj}|j}t |j|||S)Nr) local_dict)numexprr+r env full_scoperr3)r%nerrFscopes rr0zNumExprEngine._evaluatepsS LLNNim ***{{1{///rN)r8r9r:r;r<r0rrrrBrBks.L 0 0 0 0 0rrBc$eZdZdZdZdZddZdS) PythonEnginezS Evaluate an expression in Python space. Mostly for testing purposes. Fc*|Sr")r r*s rr3zPythonEngine.evaluatesyy{{rr rcdSr"rr*s rr0zPythonEngine._evaluates rNr7)r8r9r:r;r<r3r0rrrrKrK|sH L      rrK)rEpythonzdict[str, type[AbstractEngine]]ENGINES)r r r r)r; __future__rr>typingr pandas.errorsrpandas.core.computation.alignrrpandas.core.computation.opsrr pandas.io.formatsr pandas.core.computation.exprr frozensetrrABCMetar rBrKrO__annotations__rrrrZs#""""" 000000 '&&&&&2111111y:-..     &9 9 9 9 9 s{9 9 9 9 x00000N000"      >    ",,r