In 2nd line how can I check if one inserted any thing other than number( integer or float)? ( I tried using type(), didn't work)

Question

https://code.sololearn.com/ccDi2X2L2QV8/?ref=app

Answer 1

Thank you so much , i changed the input terms and the final is..
https://code.sololearn.com/c7uBtk19e4af/?ref=app