How is String slice useful?

Question

If possible explain by giving an example .

Answer 1

It actually has many uses. For example: when asking for uset conformation, you can make it so that they can enter both "Y" and "yes"

i = input("You like Python? Y / N\n")

if i[0].lower() == 'y':
print("I thought so")
else:
print( ":(" )

Another example is grouping related variables. Say you have a big dictionary of names with cellphone numbers. You can choose to only display people starting with a given substring

namedict = {"Thomas": 1027,
"Abigail": 2080
"Gavin": 3466}

name = input("Name")
print(*[(n + '\n') for n in namedict if n.startswith(name)])

The examples given might not be optimised or functional, but I hope you get the message

Answer 2

"(Let's get rid of the parentheses)"[1:-1]