Print only number

[penoxcz]

Hi I need to print only numbers from my code. So when someone types for example "Hello123" it prints only 123. How can I do that? Thanks

name = input("Jak se jmenuješ? ")
str = name
print ("Ahoj " + str + "!")

[metulburr]

You should check out our tutorial for format method

since you didnt specify any restrictions....regex would probably be the least amount of code

>>> import re
>>> re.sub('[^0-9]', '', 'Hello123')
'123'
>>> re.sub('[^0-9]', '', '!@#$%^&Hello123sdggjfhd')
'123'