Question

Explain why in Python, writing a multiple selection using else-if clauses (elif) is more readable than using nested if then-else statements. Use some Python code to illustrate your answer.

Answer 1

Explanation: Nested if else condition is more readable that if else statement. When you have a multiple conditions to choice any one of them then we have to use nested if else conditions. When you have only two conditions and either of them should execute means we have to use if else statement.

score = int(input("Enter the score: "))
grade = ''
if score >= 90:
grade = 'A'
elif score >= 80 and score < 90:
grade = 'B'
elif score >= 70 and score < 80:
grade = 'C'
elif score >= 60 and score < 70:
grade = 'D'
else:
grade = 'F'
  
print("Grade is ", grade)

Output:

sh-4.3$ python3 main.py                                                                                                                                                                                                                                                

Enter the score: 77                                                                                                                                                                                                                                                    

Grade is  C

Execute >share Code main.py x 1 score int(input ("Enter the score:")) 2 grade= '' 3 if score > 90: grade 'A' grade 'B' grade C grade 'D' grade'F 5 elif score80 and score<90 6 7- elif score >= 70 and score < 80; 9, elif score >= 60 and score < 70: 1 else: 4 print("Grade is ", grade)