I’m a bit confused. Are you giving tips on how to write code or on how to read other code? Copying all methods into the child class seems redundant, so I assume that this is for making the code easier to read.
As you say, I simply jump through the code in PyCharm (e.g. by ctrl+clicking a method name). After a while this may lead to a rabbit hole - but that in itself might be a good sign that your code needs some refactoring and simplification.