This is true but Python codebases never reaches the feature parity of large Java code bases. I like Python up to about 10 kLOC or so, after that I tend to forget what is going on where, but in Java the IDE just knows what is going on where.
I hear you, and if you're using anything other than PyCharm (or Eclipse with PyDev back in the day) then that's what you'll find. But try it with PyCharm, it works flawlessly with near perfect refractor on million line of code python code bases.