o i@s0dZddlZddlmZmZGdddeZdS)zTrait types for events.N) TraitError TraitTypec@s,eZdZdZdZddZddZddZd S) HandlerszA trait that takes a list of logging handlers and converts it to a callable that returns that list (thus, making this trait pickleable). za list of logging handlerscCs8t|dkr|D]}t|tjdur||qdSdS)z#Validate the elements of an object.rFN)len isinstanceloggingHandler element_error)selfobjvalueelrP/var/www/edux/Edux_v2/venv/lib/python3.10/site-packages/jupyter_events/traits.pyvalidate_elementss  zHandlers.validate_elementscCs d|jd|jjd}t|)z Raise an error for bad elements.zElements in the 'z' trait of an z5 instance must be Python `logging` handler instances.)name __class____name__r)r r msgrrrr szHandlers.element_errorcCsJt|r|}||||St|tkr||||S|||dS)zValidate an object.N)callablertypelisterror)r r r outrrrvalidates   zHandlers.validateN)r __module__ __qualname____doc__ info_textrr rrrrrrs  r)rr traitletsrrrrrrrs