Is Python type safe?

Question

According to Wikipedia

Computer scientists consider a language \"type-safe\" if it does not allow operations or conversions that violate the rules of the

Answer 1

In Python, you'll get a runtime error if you use a variable from the wrong type in the wrong context. E.g.:

>>> 'a' + 1

Traceback (most recent call last):
  File "", line 1, in 
TypeError: cannot concatenate 'str' and 'int' objects

Since this check only happens in runtime, and not before you run the program, Python is not a typesafe language (PEP-484 notwithstanding).