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

Use regular expressions.

import re

p = re.compile('\d+(\.\d+)?')

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

while p.match(a) == None:
    print "You need to write a number!\n"
    a = raw_input('How much is 1 share in that company? ')