Updating tuple values in python

Question

We can not update or modify tuple in python.
I am writting a code that is updating a tuple.

Why is it not giving any error? Here is my code

tuple1=(1,'hello',5,7,8,)
tuple1=tuple1[1:3]*2
print tuple1
print tupele1[3]

Why is it showing the output without any error?

Output :('hello', 5, 'hello', 5)

5

Answer 1

You're not updating the tuple, you're creating a new tuple with different values.

Answer 2

You aren't mutating the tuple, you're rebinding the name bound to it. This is not restricted by Python.

>>> (1, 2, 3)[1] = 4
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'tuple' object does not support item assignment
>>> a = (1, 2, 3)
>>> a = 4