View to know read only tablespace

hi!
im reading on read only tablespaces, what dynamic view would i know if a tablespace is read only? thanks sir/mam =)

status from dba_tablespaces

hi!
thanks! i keep looking on dba_data_files, so thats why there isnt no read only there ha9x, thanks again =)

thats because a datafile isnt a tablespace and is logically the wrong palce to look