,h:pUdZddlZddlZddlZddlmZddlmZddlm Z ddl m Z ddl m Z ddlmZdd lmZd d lmZd d lmZd d lmZd dlmZej0dej2dej4fZdZeZej>e e!d<eZ"ej>e e!d<ddhZ#ddhZ$ddhZ%ejLe'gdfejPe'gdfejRe'gdfe e'gdffZ*ejVejVejXej4ejZe fdfe!d<d e.d!e/fd"Z0d#ed!efd$Z1d%ej4d&e d!e2fd'Z3d%ej4d&e d!e2fd(Z4Gd)d*eZ5Gd+d,e5Z6Gd-d.e Z7Gd/d0e7eZ8y)1zA sandbox layer that ensures unsafe operations cannot be performed. Useful when the template itself comes from an untrusted source. N)formatter_field_name_split)abc)deque)update_wrapper) Formatter)EscapeFormatter)Markup) Environment) SecurityError)Context) UndefinedF.)boundiUNSAFE_FUNCTION_ATTRIBUTESUNSAFE_METHOD_ATTRIBUTESgi_framegi_codecr_framecr_codeag_codeag_frame)addcleardifference_updatediscardpopremovesymmetric_difference_updateupdate)rrpopitem setdefaultr )appendrrreverseinsertsortextendr) r# appendleftrr' extendleftrpopleftrrotate _mutable_specargsreturnc`t|}t|tkDrtdtd|S)zWA range that can't generate ranges with a length of more than MAX_RANGE items. z@Range too big. 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