o iv@sdZddlZddlZddlmZddlmZddlmZddlmZddlm Z ddlm Z dd lm Z dd l m Z dd l mZdd l mZd dgZefZdddZddZdddZddd Zeje_dZddZdS)z!Verify interface implementations N) FunctionType) MethodType)BrokenImplementation)BrokenMethodImplementation)DoesNotImplement)Invalid)MultipleInvalid)Method) fromFunction) fromMethod verifyObject verifyClassFc Cs|dkr|j}n|j}g}|s||s|t|||jddD]%\}}z t|||||Wq!tyF}z ||WYd}~q!d}~ww|rYt|dkrS|dt|||dS)a Verify that *candidate* might correctly provide *iface*. This involves: - Making sure the candidate claims that it provides the interface using ``iface.providedBy`` (unless *tentative* is `True`, in which case this step is skipped). This means that the candidate's class declares that it `implements ` the interface, or the candidate itself declares that it `provides ` the interface - Making sure the candidate defines all the necessary methods - Making sure the methods have the correct signature (to the extent possible) - Making sure the candidate defines all the necessary attributes :return bool: Returns a true value if everything that could be checked passed. :raises zope.interface.Invalid: If any of the previous conditions does not hold. .. versionchanged:: 5.0 If multiple methods or attributes are invalid, all such errors are collected and reported. Previously, only the first error was reported. As a special case, if only one such error is present, it is raised alone, like before. cT)allNr) Z implementedByZ providedByappendrZnamesAndDescriptions_verify_elementrlenr) iface candidate tentativevtypetesterZexcsnamedescer[C:\Users\psant\Downloads\PAF backend\school\venv\Lib\site-packages\zope/interface/verify.py_verify)s$!   rcCs(zt||}Wnty t|ts|dkrYdSt|||wt|ts(dSt|s2t|r4dSt|trSt|t rK|dkrKt |||dd}n4t |||d}n,t|t rft |j turft |||}nt|trq|dkrqdSt|s}t|d|||dSt||}|rt|||||dS)Nrr)rZimlevel)rzimplementation is not a method)getattrAttributeError isinstancer rinspectismethoddescriptor isbuiltinrtyper MethodTypes__func__r propertycallabler _incompatZgetSignatureInfo)rrrrrattrmethZmessrrrrasF      rcCt|||ddS)zF Verify that the *candidate* might correctly provide *iface*. rrNrrrrrrrr scCr-)Nor.r/r0rrrr sz*implementation requires too many argumentscCspt|dt|dkrtSt|dt|dkr |ds dS|dr*|ds*dS|dr4|ds6dSdSdS)Nrequired positionalvarargsz-implementation doesn't allow enough argumentskwargsz0implementation doesn't support keyword argumentsz1implementation doesn't support variable arguments)r _MSG_TOO_MANY)r2Z implementedrrrr*sr*)FN)F)__doc__r"systypesrrZzope.interface.exceptionsrrrrrZzope.interface.interfacer r r __all__r&rrr r r6r*rrrrs0            8 N