The built-in Python function slice allows the programmer to select portions of the input that they want to slice out. It has two possible syntaxes, slice(stop) or slice(start, stop, step). In the single parameter version, start and step default to none. The following code will print “Str”.

Question

String = 'String slicing'
s1 = slice(3)
print(String[s1])

Which of the following will result in the string “ti”?

(1 point)
Responses

s1 = slice(1, 5)
s1 = slice(1, 5)

s1 = slice(2,6)
s1 = slice(2,6)

s1 = slice(2, 6, 2)
s1 = slice(2, 6, 2)

s1 = slice(1, 5, 2)

Answer 1

To determine which of the provided slice configurations will result in the string "ti", let's analyze the string String = 'String slicing'.

The positions of the characters in the string "String slicing" are as follows:

Index:   0 1 2 3 4 5 6 7 8 9 10 11 12 13
String:  S t r i n g   s l i c i n g

We need to extract the characters at indices 1 and 3 of the string to get the substring "ti".

Now, let's evaluate the options one by one:

1. s1 = slice(1, 5)

   • This will give us String[1:5], which selects the characters from index 1 to 4.
   • Result: 'trin' (not "ti")

2. s1 = slice(2, 6)

   • This will give us String[2:6], which selects the characters from index 2 to 5.
   • Result: 'rin' (not "ti")

3. s1 = slice(2, 6, 2)

   • This will give us String[2:6:2], which selects every 2nd character starting from index 2 up to, but not including, index 6.
   • Result: 'ri' (not "ti")

4. s1 = slice(1, 5, 2)

   • This will give us String[1:5:2], which starts from index 1, goes up to, but not including, index 5, and selects every 2nd character.
   • Result: 'ti' (This is the correct option)

Thus, the correct answer is:

s1 = slice(1, 5, 2)