Python is safe from this:

    Python 2.7.5 (default, Feb 19 2014, 13:47:28) 
    [GCC 4.8.2 20131212 (Red Hat 4.8.2-7)] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> "0" + 5
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    TypeError: cannot concatenate 'str' and 'int' objects