week 11.py

1.
Write a Python program that asks the user for their age and prints a message based on the age. Ensure that the program handles cases where the input is not a valid integer.
Input Format: A single line input representing the user's age.
Output Format: Print a message based on the age or an error if the input is invalid.


For example:
Input	Result
twenty
	Error: Please enter a valid age.

25
	You are 25 years old.

-1
	Error: Please enter a valid age.


try:
    a=input()
    if(len(a)==0):
        print("Error: Please enter a valid age.")
    elif a.isnumeric():
        print("You are",a,"years old.")
    else:
        print("Error: Please enter a valid age.")
except:
    print("Error: Please enter a valid age.")
OUTOUT:
	Input	Expected	Got	
	twenty	Error: Please enter a valid age.	Error: Please enter a valid age.	
	25	You are 25 years old.	You are 25 years old.	
	-1	Error: Please enter a valid age.	Error: Please enter a valid age.	
	150	You are 150 years old.	You are 150 years old.	
		Error: Please enter a valid age.	Error: Please enter a valid age.	
Passed all tests!  
Correct
2.
Problem Description:
Write a Python program that asks the user for their age and prints a message based on the age. Ensure that the program handles cases where the input is not a valid integer.

Input Format:
A single line input representing the user's age.

Output Format:
Print a message based on the age or an error if the input is invalid.
For example:
Input	Result
25	You are 25 years old.
rec	Error: Please enter a valid age.
-5	Error: Please enter a valid age.

try:
    a=input()
    if(len(a)==0):
        print("Error: Please enter a valid age.")
    elif a.isnumeric():
        print("You are",a,"years old.")
    else:
        print("Error: Please enter a valid age.")
except:
    print("Error: Please enter a valid age.")
OUTPUT:
	Input	Expected	Got	
	25	You are 25 years old.	You are 25 years old.	
	rec	Error: Please enter a valid age.	Error: Please enter a valid age.	
	!@#	Error: Please enter a valid age.	Error: Please enter a valid age.	
Passed all tests!  
Correct
3.
Problem Description:
Write a Python script that asks the user to enter a number within a specified range (e.g., 1 to 100). Handle exceptions for invalid inputs and out-of-range numbers.
Input Format:
User inputs a number.
Output Format:
Confirm the input or print an error message if it's invalid or out of range.
For example:
Input	Result
1	Valid input.
101	Error: Number out of allowed range
rec	Error: invalid literal for int()

def main():
    min_range = 1
    max_range = 100

    try:
        num = int(input())
        if num < min_range or num > max_range:
            print("Error: Number out of allowed range")
        else:
            print("Valid input.")
    except ValueError:
        print("Error: invalid literal for int()")


if __name__ == "__main__":
OUTPUT:
	Input	Expected	Got	
	1	Valid input.	Valid input.	
	100	Valid input.	Valid input.	
	101	Error: Number out of allowed range	Error: Number out of allowed range	
Passed all tests!  
Correct
Marks for this submission: 1.00/1.00.
4.
Develop a Python program that safely performs division between two numbers provided by the user. Handle exceptions like division by zero and non-numeric inputs.
Input Format: Two lines of input, each containing a number.
Output Format: Print the result of the division or an error message if an exception occurs.


For example:
Input	Result
10
2	5.0
10
0	Error: Cannot divide or modulo by zero.

ten
5
	Error: Non-numeric input provided.

def main():
    try:
        num1 = float(input())
        num2 = float(input())
       
        division_result = num1 / num2
        modulo_result = num1 % num2
       
        print(division_result)
        
    except ValueError:
        print("Error: Non-numeric input provided.")
    except ZeroDivisionError:
        print("Error: Cannot divide or modulo by zero.")


if __name__ == "__main__":
    main()
OUTPUT:

	Input	Expected	Got	
	10
2	5.0	5.0	
	10
0	Error: Cannot divide or modulo by zero.	Error: Cannot divide or modulo by zero.	
	ten
5	Error: Non-numeric input provided.	Error: Non-numeric input provided.	
Passed all tests!  
Correct
5.
Problem Description:
Develop a Python program that safely calculates the square root of a number provided by the user. Handle exceptions for negative inputs and non-numeric inputs.
Input Format:
User inputs a number.
Output Format:
Print the square root of the number or an error message if an exception occurs.
For example:
Input	Result
16	The square root of 16.0 is 4.00
-4	Error: Cannot calculate the square root of a negative number.
rec	Error: could not convert string to float
try:
    a=float(input())
    if(a<0):
        print("Error: Cannot calculate the square root of a negative number.")
    else:
        print("The square root of",a,"is {:.2f}".format(a**0.5))
except:
    print("Error: could not convert string to float")
OUTPUT:
	Input	Expected	Got	
	16	The square root of 16.0 is 4.00	The square root of 16.0 is 4.00	
	0	The square root of 0.0 is 0.00	The square root of 0.0 is 0.00	
	-4	Error: Cannot calculate the square root of a negative number.