Join function - String

Question

print("* ".join(["spam", "eggs", "ham"]))

Why ham is not changed?

Answer 1

join() only puts the string given between elements. Since ham is the last one, nothing gets put in after it.

Answer 2

Because split() splits a string into a list (hence the name) with the string provided as the separator. If you did

print("spam, eggs, ham".split(", "))

you would get

['spam', 'eggs', 'ham']

Answer 3

print("spam, eggs, ham".split("* "))

why this code doesn't print
spam* eggs* ham ?