Python Age Input Program To determine if the input number is an input number.

while True:

    a=input ('Enter your age:')
    if type(a)==str:
        print ('Please enter an age number')
    else:
        print('OK')
        break

I'm a beginner at Python. I've done this much, but I can't do it anymore. Haha.

If you receive your age as a non-integer string, you must create a program that repeats until you enter your age.

Thank you