From the man page: -i When a script is passed as first argument or the -c option is used, enter interactive mode after executing the script or the command. It does not read the $PYTHONSTARTUP file. This can be useful to inspect global variables or a stack trace when a script raises an exception. So … Read more
You can use the perl debugger on a trivial program, like so: perl -de1 Alternatively there’s Alexis Sukrieh‘s Perl Console application, but I haven’t used it.
IPython is extremely useful if you like using interactive sessions. For example for your use-case there is the %save magic command, you just input %save my_useful_session 10-20 23 to save input lines 10 to 20 and 23 to my_useful_session.py (to help with this, every line is prefixed by its number). Furthermore, the documentation states: This … Read more