What does .split() do in python

Answer 1

Splits a string into list items according to the argument passed
a="hellowo,rld"
print(a.split(","))
a="hello world spam"
print(a.split(" "))

Answer 2

you will be better off to try it in a code or read the documentation on that which will give you more insight on how the method works, that's just my 2 cent opinion for you

Answer 3

a = 'i like python'
b = a.split()
print(b)
['i', 'like', 'python']
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f = banana
g = f.split('a')
print(g)
['b', 'n', 'n']