Extension not giving output

[Adyboy1]

Extension is not working as it should it has stopped displaying any output when the testcases are run

[rayleigh-jin]

Version is 5.9.2
When I run the test case, the extension cannot recognize the output.

def is_leap(year):
    
    # Write your logic here
    if year % 4 == 0:
        if year % 100 == 0:  #unless
            if year % 400 == 0: #unless
                return True
            else:
                return False
        else:
            return True
    else:
        return False
        

year = int(input("Input a year what you want to check: "))
print(is_leap(year))