In the education space (where Python is pretty big), the biggest problem we have is that Python code isn't 'shareable' so it's hard for kids to show off their creations to Grandma. Sure, there are some products which work to work around that (like repl.it), but the core problem remains - a student can't easily get their Python program to run on an arbitrary computer. It's why I'm very tempted to move to JS for teaching, despite all of the dragons lurking there.