Safe casting in python

Question

How to do safe cast in python

In c# I can safe cast by keyword as, e.g.:

string word=\"15\";
var x=word as int32// here I get 15

string word=\"fifte         


        

Answer 1

There is something similar:

>>> word="15"
>>> x=int(word)
>>> x
15


>>> word="fifteen"
>>> x=int(word)
Traceback (most recent call last):
  File "", line 1, in 
ValueError: invalid literal for int() with base 10: 'fifteen'


>>> try: 
...     x=int(word)
... except ValueError:
...     x=None
... 
>>> x is None
True