[Tutor] Refreshing the interpreter environment

[lawrence wang]

How do I refresh the interpreter environment without restarting it, if
possible? For example, I'm using the interpreter to test a class I'm
writing; importing and instantiating it reveals a typo; I go and fix
the typo. Now, is there any way to reload the class afresh? Simply
importing again doesn't seem to do it. Thanks in advance for your
help.

Lawrence Wang