Help me please.How in this code to do, if the dialled number is not the binary then print"the dialed number is not binary"Python

Question

n=input('input binary number:')
s=hex(int(n, 2))
print(s)
https://code.sololearn.com/c18C5S4q5o36/?ref=app

Answer 1

try:
s = hex(int(a, 2))
except:
s = "Is not binary"

==== or it:

if a.replace("0", "").replace("1", "") == "":
s = hex(int(a, 2))
else:
s = "number is not a binary"
print(s)

Answer 2

thank you very much