ϪfZ<dZddlmZddlmZddlmZdedefdZy ) z Logging utilities. )List)LogTrace)Loggertracereturncdtdtfd}g}g}|D]\}}|r|d|urQ||vr |d|urF|j|d|urn-|s|j||d|j||jdt |z|jd||ddj |S) ay Format a trace (that is, the contents of the C{log_trace} key of a log event) as a visual indication of the message's propagation through various observers. @param trace: the contents of the C{log_trace} key from an event. @return: A multi-line string with indentation and arrows indicating the flow of the message through various observers. objrcDt|dr|d|jdS|S)Nnamez ())hasattrr )r s 6/usr/lib/python3/dist-packages/twisted/logger/_util.pyformatWithNamez#formatTrace..formatWithNames* 3 U"SXXJa( (UO z z-> )objectstrpopappendlenjoin)rrresultlineageparentchilds r formatTracersFs FG 7 '"+V3 bk/KKMbk/MM^F%;$r%s( !$x$C$r