Explanation
Step-by-Step Breakdown
string = 'REPTILE'[:3:]
The slicing [:3:] takes the first 3 characters of the string ‘REPTILE'.
Result: string = 'REP'.
string = string[-1] + string[-2::-1]
string[-1]: Takes the last character of 'REP', which is ‘P'.
string[-2::-1]: Reverses the string up to the second-to-last character:
string[-2] is 'E', and string[-2::-1] reverses 'RE' to ‘ER'.
Concatenate: 'P' + 'ER' -> string = ‘PER’.
The correct answers are:
A. len(string) == 3
The length of 'PER' is 3.
This evaluates to True.
C. string[0] < string[-1]
string[0] is 'P' and string[-1] is ‘R'.
'P' < 'R' is True because 'P' comes before 'R' in ASCII order.
The incorrect answers are:
B. string[0] == 'E'
string[0] is 'P', not 'E'.
D. string is None
string is 'PER', so it is not None.
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flthymcnsty
4 months, 3 weeks ago