As a Python dev with 12 years of experience, I still use the REPL every day. When I wonder how something works or if I need my memory to be refreshed, I just f

As a Python dev with 12 years of experience, I still use the REPL every day. When I wonder how something works or if I need my memory to be refreshed, I just fire up jupyter console and test quickly the code. I don't open the doc or search on the net. I have the live result immediatly. When I want to debug my web server, I drop a REPL in the server and play with the code. It's more efficient that just debugging, because I can actually modify the code live and see what happens. When I need to understand a format and how to manipulate / tranform data, I use the REPL (or jupyter notebook) because it's the most natural way to do it. I don't know how much Python you have done, but you have been missing one of the greatest tool of the ecosystem. It's like saying you don't see that much the benefits of an IDE for refactoring in Java. "yeah it's cool but how much do you use it hu ?".