Tweeted By @jeremyphoward
Number 5, `import *`, is only true if the package author hasn't defined `__all__`. Packages designed for use in a REPL should endeavor to always define this carefully - e.g. every fastai module does.
— Jeremy Howard (@jeremyphoward) October 22, 2019
If you're using such a package in a REPL, `import *` can save a lot of bother!