pyramid-cubicweb #13421901 When in cubicweb-ctl pyramid -D no tracebacks are shown in the terminal [validation pending]

prioritynormal
typebug
done in0.7.0
load0.250
load left0.000
closed by#be13b3ea71de [bwcompat] log execption even when cubicweb.bwcompat.errorhandler = True (closes #13421901)
patch[bwcompat] log execption even when cubicweb.bwcompat.errorhandler = True (closes #13421901) [applied]