Leap year while-loop

Question

I'm having problems. Basically the code won't let me add a year after the user submits a year to check if it's a leap year. If it is a leap year, the loop stops, if not I need to add a year and give me the leap year. How can I improve it?

year = int(input("Year:"))

while True:
    leapyear = year+1
    if leapyear%4 == 0 and leapyear%100 != 0 or leapyear%100 == 0 and leapyear%400 == 0:
        break

if True:
    print(f"The next leap year after {year} will be {leapyear}")

Answer 1

With leapyear = year+1 you do not increase it, if year=2013 , the loop will make leapyear = 2013+1 = 2014 every time, you need to increase leapyear

year = 2016
leapyear = year

while True:
    if leapyear % 4 == 0 and leapyear % 100 != 0 or leapyear % 100 == 0 and leapyear % 400 == 0:
        break
    leapyear += 1

print(f"The next leap year after {year} will be {leapyear}")

You can shorten while + if/break in one statement

while not (leapyear % 4 == 0 and leapyear % 100 != 0 or leapyear % 100 == 0 and leapyear % 400 == 0):
    leapyear += 1

Answer 2

As azro pointed out, leapyear will only ever equal year + 1 , and to make it increase you could do leapyear = leapyear + 1 .

Also in the code you provided you are checking if the year after the year inputted by the user is a leapyear. If you intended to check the current year as well, you should do the if statement first before increasing leapyear.

if True:

This will always run, so you might as well not include it.