If you are dealing with many-gigabyte files or a performance-critical pipeline then yeah, you'd want to do it line-by-line. My example is just a quick and dirty

If you are dealing with many-gigabyte files or a performance-critical pipeline then yeah, you'd want to do it line-by-line. My example is just a quick and dirty script, or REPL input, without any of the boilerplate - which I think is an area Python excels in.