Using isdigit for floats?

Question

a = raw_input(\'How much is 1 share in that company? \')

while not a.isdigit():
    print(\"You need to write a number!\\n\")
    a = raw_input(\'How much is 1 shar         


        

Answer 1

s = '12.32'
if s.replace('.', '').replace('-', '').isdigit():
    print(float(s))

Note that this will work for negative floats as well.