I want to print amessage if any one input chars (string) instead of numbers and stop my following code after this line ?

Question

https://code.sololearn.com/cgt8bpma8bYM/?ref=app

Answer 1

You could do it like this:

if not re.match(x,degree):
not ok
else
your logic

Answer 2

you can check input with isdigit().