I have this doubt.

Question

colors=["red","green"]
colors.extend("blue")
print(colors)
Output is = ['red','green','b','l','u','e']
Why the blue is appended like this why it's not 'blue'

Answer 1

extend expects an iterable argument . when you pass it a string, it iterates over it and returns each char at a time.
if it were colors.extend(["blue"])
it would output what you expected.

Answer 2

bahha🐧 Thanks bro. I got it.