Page 102 - Information_Practice_Fliipbook_Class11
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Program 4.2
# Objective: To compute the quotient of two numbers
# : To understand runtime errors.
#User inputs: numeric values for numerator and denominator
numerator = int(input("Enter the numerator : "))
denominator = int(input("Enter the denominator : "))
quotient = numerator/denominator
print("The quotient is :", quotient)
Output 1: When the user enters denominator as 0
Enter the numerator : 40
Enter the denominator : 0
Traceback (most recent call last):
File "F:/Orange/runTimeErr.py", line 6, in <module>
quotient = numerator/denominator
ZeroDivisionError: division by zero
Output 2 : When the user enters numerator as a string that cannot be interpreted as an int
Enter the numerator : 22*22
Traceback (most recent call last):
File "C:\Users\ADMIN\Desktop\hhh.py", line 4, in <module>
numerator = int(input("Enter the numerator : "))
ValueError: invalid literal for int() with base 10: '22*22'
Output 3: When the user enters suitable values
Enter the numerator : 20
Enter the denominator : 5
The quotient is : 4.0
Below, we give some more examples of runtime errors:
>>> print(num)
Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
print(num)
NameError: name 'num' is not defined
In the above example, the variable (name), num is accessed for printing its value before it is assigned a value. So, a
NameError is displayed because the name num is unknown to the interpreter. In the following example, the use of
int and str objects is incompatible with the + operator, so the interpreter points out a TypeError.
>>> 10 + "Hello"
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
10 + "Hello"
TypeError: unsupported operand type(s) for +: 'int' and 'str'
Match the following:
1. Implicit type conversion a. Infinite loop
2. Syntax Error b. Trying to read a file that does not exist
3. Logical Error c. y = int(input("Enter a number"))
4. Explicit Type conversion d. PRINT()
5. Runtime Error e. coercion
88 Touchpad Informatics Practices-XI

