Python Retry and check

Question

Hi every one. I just wonder how take a input from user for example number check the input and if input is a string inform user about error and start function again .
try:
num = float(input("enter num")
except:
print("this is not a num try again")
How to make something like goto or while is true ?

Answer 1

Use an infinite loop with return and continue statements...
https://code.sololearn.com/c4eoE6ln4G3v/?ref=app

Answer 2

O will check it thx