I guess I'm contrasting Python with my Java experience so far as banging out prototypes quickly. In Java, I don't think the type system gets in the way so much

I guess I'm contrasting Python with my Java experience so far as banging out prototypes quickly. In Java, I don't think the type system gets in the way so much as its classpath. It's been a long time since I've done Java, but you'd have to get your jars in order and write an ant or maven script to do the compile/run steps (or at least a bash script). I like that with Python I can just do pip install whatever and begin using the module immediately in my main method. In Java, It's not standard practice to copy jars into the system classpath IIRC, so you'd have to copy them around every time you want to do something new. I need to investigate Rust's command line interface. Obviously, the more it can get close to python main.py vs. javac -cp foo/Bar.jar:baz/Quux.jar Main.java; java --classpath foo/Bar.jar:baz/Quux.jar Main the better it will be for this use case I mention. Thanks to both of you for responding!