The example which claims to get "all the rows from 50th row to the 55th row" is broken, since Python is zero-based whereas Julia and R are one-based. The 50th

The example which claims to get "all the rows from 50th row to the 55th row" is broken, since Python is zero-based whereas Julia and R are one-based. The 50th row in Python is at index 49, so the code is not equivalent between the examples.