Fix datashape.broadcastable function using operator.index and back to Fixed
Fix datashape.broadcastable function using operator.index and back to Fixed

FrancescAlted/datashape,ContinuumIO/datashape,cpcloud/datashape,aterrel/datashape,FrancescAlted/datashape,aterrel/datashape,cowlicks/datashape,markflorisson/datashape,quantopian/datashape,blaze/datashape,ContinuumIO/datashape,llllllllll/datashape,markflorisson/datashape,blaze/datashape,quantopian/datashape,llllllllll/datashape,cpcloud/datashape,cowlicks/datashape