Question

for python-3

I want to prompt the user to enter their first name and then Call the is_field_blank function to see if nothing was entered.and If nothing was entered i want it to display the following message "First Name must be Entered" and then re-prompt the user to enter the first name. I want it to do this repeatedly until the user enters a first name.

this is what i have so far

def main():
    yourFirst = input("What is your first name? ")
    is_feild_blank(yourFirst)

def is_feild_blank(yourFirst):
    if yourFirst == "":
        print("First Name must be Entered")
      

Answer 1

def is_field_blank(s):
    if(len(s)==0):
        return True
    else:
        return False

def main():
    fn = input("Enter your first name: ")
    while(is_field_blank(fn)):
        print("First Name must be Entered")
        fn = input("Enter your first name: ")

main()