Comment by LC_ALL

POSIX has multiple Turing complete utilities that can be used in tandem. Its not a very fair competition. Many of the primitives involved are simply not primitives of higher level languages. Write a python script to remove blank lines from standard input. In awk it takes 5 non-whitespace characters (including 'awk'). Use awk to remove blank lines from your python code when you need to paste it into a terminal. Many python developers have a terrible time from the command line because they do not use the shell to help themselves out.